Janesville School
District's
Chemical Hygiene Plan
Chemical Hygiene Plan
Table of Contents
I. Responsibilities
A. List of Employees involved in the CHP
B. Superintendent
C. Chemical Hygiene Officer
D. Chemical Hygiene Committee
E. Classroom and Laboratory Supervisor
II. Chemical Hygiene Policy Statement
III. Standard Operating Procedures
A. General
B. Laboratory Procedures
C. Housekeeping Practices
D. Chemical Procurement
E. Storage and Distribution
F. Waste Disposal
G. Spills
IV. Control Measures
A. Personal Protective Equipment
B. Administrative Controls
V. Safety/Emergency Facilities and Equipment
A. Equipment
B. Facilities
VI. Training and Information
A. Training of Employees
B. Training of Students
VII. Prior Approval
VIII. Procedure for Major Relocation of Chemicals in the
District
Appendix
 Laboratory Safety Checklist
 Chemical Storage Inspection Checklist
 Form for Listing Generic Chemicals in the Classroom
 Dos and Don'ts of Chemical Labeling
 17 Steps to Minimize Chemical Waste
 Chemicals/Hazardous Material Crisis Plan
 EMC -MSDS Information Summary For Use
 Flinn Student Safety Contract
 Elementary Highlights for Chemical Safety and
Checklist
 Middle School Highlights for Chemical Safety and
Checklist
 High School Highlights for Chemical Safety
 Building Use Policy for the District
 Filter Lenses for Protection Against Radiant Energy
 Tasks-Hazards-Recommended
 Biological Hazards
 Animals
 Chemical Compatibility Table
 Chemical Compatibility Chart
 Suggested Chemical Storage Pattern
 Chemical List for the District
 OSHA Standards
 Annual CHP Review/Revision
Chemical Hygiene Acronyms found in the Chemical Hygiene
Plan
CHO - Chemical Hygiene Officer (IM)
CHP- Chemical Hygiene Plan
EMC- Environmental Management Consulting Inc,
ESC- Janesville District Educational Service Center
IM Instructional Manager Position
MSDS - Material Safety Data Sheet
What is a Material Safety Data Sheet (MSDS)?
It is a document that contains information on the potential hazard of a
chemical and how to work safely with the chemical product. It is an
essential starting point for the development of a complete safety
check for anyone using a chemical. It contains information on the
use, storage, handling and emergency procedures related to all
hazards of a chemical. MSDS's are prepared by the supplier or
manufacturer of a chemical and is intended to explain the hazards
and state the symptoms of overexposure or procedures in case of
an accident.
What information is on the MSDS?
I. Product information
2. Hazardous ingredients
3. Emergency phone numbers
4. Physical data
5. Fire or Explosion data
6. Reactivity data - how stable it is
7. Toxicological properties - health effects
8. Preventive measures
9. First Aid measures
Janesville School District's Chemical Hygiene Plan (CHP)
I. Responsibilities
A. List of Employees involved in the CHP
1. Chemical Hygiene Officer: (IM)
Miss Debra Hilger: Science-Chemistry Educator in the District of Janesville has been hired as the
Chemical Hygiene Officer for the Chemical Hygiene Program with the Janesville School District
and will provide leadership and direction for the program.
2. Chemical Hygiene Committee:
Deb HilgerChemical Hygiene Officer IM
Chris Wesling- Manager of Health Services and Safety
Bill Samborski- Manager of Purchasing, Transportation and Custodial
Dave LeederMaintenance Supervisor
Tom HeissTechnology Educator
Communications Specialist
Kristin Worm- Science Educator
3. Superintendent of Schools
Karen Schulte
Educational Services Center
527 S. Franklin St. Janesville. WI 53548
ext: 5648
ext: 5079
ext: 5016
ext: 5083
ext: 5844
ext: 5137
ext: 5379
ext: 5050
4. School Board of Janesville School District
B. Superintendent
1. Designate a Chemical Hygiene Officer ( C HO )
2. Provide facilities in compliance with Lab and Chemical Standards
C. Chemical Hygiene Officer (IM) Shall:
1. Act as the School District's representative in matters relating to Chemical Hygiene
2. Appoint a Chemical Hygiene Committee and hold regular meetings each year
3. Work with District Administrators and the CHC in the development and maintenance of the
CHP.
4. Ensure the appropriate training has been provided to the district employees
5. Monitor waste disposal of chemicals
6. Monitor purchasing and use of acceptable chemicals in the district
7. Report and change deficiencies that are a concern to CHC and Administration
8. Over see the district so we are in compliance with the WI Dept. of Commerce (WDC)
9. Develop and maintain a chemical list of all the che micals in the Janesville School District
10. Oversee updates and maintenance of MSDS for the building s and chemical use areas
11. Conduct yearly training for the complete staff using a 15 minute video on chemical safety and
procedures
12. Meet with the Middle School and High School Art, Tech Ed, Face, Ag and Science
teachers for a more in-depth training
D. Chemical Hygiene Committee (CHC) Shall:
1. Work with administrators and other faculty to develop and implement acceptable
and appropriate Chemical Hygiene policies following the guidelines provided
by the WI Department of Commerce /DNR/ Department of Health and Family Services
2. Perform regular, formal Chemical Hygiene and housekeeping inspections of
chemicals and safety
3. Review and update the Chemical Hygiene Plan yearly
4. Review necessary yearly training for school employees
5. Respond to concerns in the safe operation of the district's curriculum labs and
custodial use of chemicals
6. Review safety inspection of emergency laboratory procedures and signage.
7. Work with and use as resources, Liberty Mutual Insurance and EMC both hired by the
district for safety consulting
8. Monitor the waste disposal of chemicals for the district and receive report of the pick -up
9. Meet as a committee when necessary to complete the above tasks or in an emergency
situation, at least four times a year, once a quarter for each school year
E. Classroom and Laboratory Supervisor Shall:
l.
2.
3.
4.
5.
6.
Supervise lab and chemical use in a lab situation
Know the appropriate emergency, waste disposal and spill cleanup procedures
Personally clean up larger chemical spills and broken glass or equipment
Report incidents and accidents to the Principal and CHO and f ill out an accident report
Conduct all laboratory activities in compliance with the CHP to minimize chemical exposures
Provide instruction in safe laboratory procedures, personal protective equipment and emergency
response to all staff and students in the lab
7. Have all students sign a student safety contract
8. Ha ve students take a safety test and review and reteach any wrong answers
9. Maintain chemical storage area in a clean, organized and secure manner
10. Never let students work alone in the lab or allow them in the chemical storeroom
11. Read chemical labels and understand the hazar ds of the chemical as stated in the MSDS
12. Activate and spot check eye washes and safety showers on a monthly basis
13. IM's and unit leaders review chemicals and manage inventory of chemicals and equipment
14. Oversee purchase orders and make sure purchase dates are on a ll new chemicals received
II. Chemical Hygiene Policy Statement
Chemical Hygiene Officer (IM) Appointment
In compliance with the Federal Laboratory Standard, Janesville School District
realizes its responsibility for the protection of the employees and students. We hear
by institute the enclosed Chemical Hygiene Plan to assist us in our safety program.
Janesville School District hereby appoints Debra Hilger to be our Chemical Hygiene
Officer (IM). We acknowledge the Chemical Hygiene Officer (IM) has the
knowledge and authority to implement and enforce our Chemical Hygiene Plan.
Although we at Janesville School District are designating Debra Hilger as our
Chemical Hygiene Officer (IM), we realize the success or lack of success of our
Chemical Hygiene Plan rests with all of our employees. The ultimate responsibility
of the Chemical Hygiene Plan rests with the School Board and the School District
Superintendent.
__________________________ (Signed by the Superintendent)
_________________________ Date
CHEMICAL HYGIENE PLAN
III. Standard Operating Procedures
A. General
1. The design of the laboratory facility will provide sufficient space for safe work by the number of
persons allowed in the laboratory. Exit doors will be clearly marked and free of obstructions to
permit quick, safe escape in an emergency.
2. Staff and students must follow the Chemical Hygiene Plan to minimize their health and safety
risks.
3. It is prudent to minimize all chemical exposures, because most laboratory chemicals present
hazards of one type or another. Employees will follow general precautions f o r handling all
laboratory chemicals. Specific guidelines for some chemicals, such as thos e found in the
MSDSs, will be followed.
4. Employees should not underestimate the risk, and exposure to hazardous substances should be
minimized. The decision to use a particular substance will be based on the best available
knowledge of each chemical's particular hazard and the availability of proper handling facilities
and equipment. Substitutions, either of chemicals or experiments, will be made where
appropriate to reduce hazards without sacrificing instructional objectives. When the risk
outweighs the benefit and no substitute is available, the experiment, procedure, or chemical will
be eliminated.
5. Chemicals will not be accepted from a supplier unless it is accompanied by the corresponding
MSDS, or an MSDS from that supplier for that chemical is already on file. All MSDSs will be
accessible to employees at all times. Employees will be trained to read and use the information
found on MSDSs.
6. Generally, textbooks, laboratory manuals, and other instructional materials designate the safety
precautions needed for a particular laboratory activity. However, total reliance on such
publications to provide complete and accurate information is not advisable. Employees should
consult additional references, including Material Safety Data S heets, before undertaking an
unfamiliar activity.
7. MSDS can be accessed in the areas of the chemicals or online from the District's Web page by
clicking on the MSDS online logo and getting the start page provided by EMC.
B. Laboratory Procedures
1. Individuals in laboratories:
a. Eating, drinking, gum chewing, application of cosmetics, manipulation of contact
lenses, or other such activities cannot be done in the laboratory. This applies even
when the laboratory is being used as a classroom, since residual chemicals may be
present.
b. Conduct yourself in a responsible manner at all times in the laboratory. This means that
horseplay, throwing items, and pranks are prohibited.
c. Employees or students must not work alone in the lab unless other employees are in the
vicinity and are aware that someone is in the laboratory.
d. "Wafting" to test chemical odors should be done with extreme caution and when only
specifically directed to do so in the written experimental procedure. Also, chemicals
must never be tasted.
e. Never pipette by mouth. Always use a bulb or other device. for suction.
f.
Do not force glass tubing into rubber stoppers. Lubricate the glass and hold the tubing
with a cloth towel as the tubing is inserted into the stopper.
g
Proper Bunsen Burner procedures must be followed. Light the match and put it to the
side of the burner and turn the gas on ¾’s open. If using a striker, turn the gas on and
spark immediately. Shut the gas off and start over it the burner does not light. Check the
two values to make sure they are open. Never leave a flame unattended.
h. Dress appropriately for laboratory work. Avoid loose or baggy clothing and dangling
jewelry. Confine or tic back long hair. Sandals or any open toed shoes are not permitted
in the laboratory.
i.
Should a fire drill or any other evacuation occur during a lab activity, turn off all Bunsen
Burners and electrical equipment. Leave the room as directed.
j.
Remember hot glass looks like cold glass, and glass remains hot for a long time.
Determine if an object is hot by bringing your hand close to the object but do not touch
the object.
k. Careful storage and handling procedures must be used to avoid glassware breakage. In
the event of breakage, protection for the hands should be worn when picking up the
broken pieces. Small pieces must be swept up with a brush and pan. Broken glass must
be separated from other waste by placing it in a special container marked Broken Glass.
Broken glass contaminated with chemicals must be treated as hazardous waste.
l. The quantities of flammable liquids used in the laboratory shall not exceed the amount that
can be consumed in one day.
2. Students in the laboratory:
a. Must read lab directions before the lab and follow all verbal and written instructions
b. Shall perform only authorized experiments
c. Must report all accidents or injuries to the instructor at once, no matter how trivial it may
seem
d. Shall have the instructor clean up broken glass or major chemical spills
e. Must work in a laboratory under the direct supervision of a teacher
C. Housekeeping Practices
1.
Individuals in the laboratory:
a. Must keep the lab areas clean and labs must contain only those items needed
for the task at hand.
b. Place all wastes in appropriate, segregated receptacles that are properly
labeled.
c. Sinks are to be used only for disposal of water and those solutions desig nated
by the instructor. Other solutions must be placed in the appropriate labeled
waste container.
d. "Tabletops are to be swept clean and washed at the end of the lab activity.
e. Clean up all chemical spills as soon as they occur. Chemicals and cleanup
materials must be disposed of in the trash and custodians informed.
f.
Never block access to emergency equipment, showers, eyewashes, or exits.
g. Store chemicals and equipment properly. Chemicals must not be stored in the
long-term (beyond 24 hours) in aisles, on the floor, in stairwells, on desks, or
laboratory tables.
h. Before leaving the laboratory, turn off services (gas, electricity, water).
i.
Keep all cabinets and drawers closed and, when possible, locked, when not in
use to avoid catching and bumping hazards.
j.
Ensure floors are cleaned daily by the custodial staff.
k. Have the head custodian check safety equipment monthly and record the
safety check on the cards provided.
2. Students in the laboratory
a. Bring only your lab instructions, calculators, and writing instruments to the
laboratory
area
b. Leave backpacks and other books in the classroom area and not in the lab space.
D. Chemical Procurement
1. The Chemical Hygiene Officer is responsible for approving all chemicals used in the
classroom. The purchasing of chemical should be guided by the less is better approach.
The less chemical inventory, the fewer the problems associated with storage, and the less
likely that the school district will face excessive costs to dispose of outdated or surplus
chemicals.
2. Chemicals should be ordered in quantities that are likely to be consumed in one year and
must be purchased only in the quantity sufficient for the declared use. Hazardous
chemicals must be disposed of, when they are deteriating or after 5 years if not used.
3. All chemicals must be in tightly closed, sturdy, and appropriate containers.
4. A chemical must not be accepted without the material safety data sheet and an adequate
identifying label. (Standard)
5. When a chemical is received, proper handling, storage, and disposal should be known.
(Standard)
6. The container must be marked with the full level and date(s) it is received and opened.
7. The chemical list must be updated each year for science areas.
8. Donated chemicals should be accepted only after approval is obtained from the Chemical
Hygiene Officer. It should be established that the donated chemical is in excellent condition
and labeled, that an appropriate MSDS is available, and that there is a specific use for the
donated material.
9. The Chemical Hygiene Officer will inspect areas so that all chemicals on site have a current
MSDS. The CHO must ensure that all MSDS's are collected in a clearly marked binder and
is kept in a location that is readily accessible to school and emergency personnel.
E. Storage and Distribution
1. All chemicals must be in tightly closed, sturdy, and appropriate containers.
2. If the chemical has been transferred to a secondary container, the new container must be
appropriately labeled.
3. Chemicals must be stored based on the reactive nature, and compatibility group, of the
chemical. Acids and oxidizers must always be stored apart.
4. Large containers and containers with reactive chemicals, such as acids and bases, must be
on low shelves. Wherever possible, chemicals must be stored at or just below eye level, on
storage shelves that have a "lip" to prevent spills.
5. The Flinn classification system is used by the District of Janesville. The classification
system used for the storage of chemicals should be displayed in the principal storage area.
Chemicals cannot be stored alphabetically.
6. Flammable chemicals must be stored in approved storage containers and in approved
flammable chemical storage cabinets. A common household refrigerator is not considered
to be an approved storage cabinet.
7. Combustible packaging material must not be stored near flammable chemical storage
cabinets or electrical panels.
8. Nitric acid and acetic acid must be stored in separate areas in the acid cabinet.
9. All storage areas must be securely locked when not in use. Storage and preparation areas
will be accessible only to those persons authorized to use the chemicals.
10. Glass bottles containing highly flammable liquids (Class 1 A) shall not exceed 500mL. For
larger volumes, metal or approved plastic may not exceed 1 gallon, and safety cans shall not
exceed 2 gallons.
11. Chemicals should not be distributed to other persons or to other areas of' the school without
the prior approval of the Chemical Hygiene Officer. Chemicals must not be transferred to
another location without the simultaneous transfer of a copy of the appropriate material data
safety sheet, nor must they be transferred without the person receiving the chemicals having
had an appropriate training in their use, storage, and disposal.
12. OSHA standards and WDC Guidelines or local lire regulations should be consulted on the
proper use of flammable chemicals in the laboratory.
13. Instructors must check chemical expirations dates, and dispose of expired chemicals using
the end of the year chemical pickup procedure. Store the chemical safely till in June, pickup
comes to the building and takes it away.
14. Compressed Gases:
a.
A compressed gas is defined as any material or mixture having in the container
either an absolute pressure greater than 276 kPa (40 lb/in 2) at 21 °C, or non
absolute pressure greater than 717 kPa (104 lb/in 2) at 54°C or both, or any liquid
flammable material having a Reid vapor pressure greater than 276 kPa (40 lb/in 2) at
38°C.
b.
Gas cylinders must he moved from one location to another with the protective cap
securely in place and then attached to a wall.
c.
Both full and empty cylinders must be stored where they may be securely restrained
by straps, chains, or a suitable stand and the protective cap must be securely in
place.
d.
A cylinder is never completely empty; there is always a slight positive pressure due
to residual gas.
e.
Cylinders should not be exposed to temperatures about 50° C.
f.
Flammable gases must be stored at least 20 feet away from oxidizing gases, or
stored with an acceptable barrier between them.
F. Waste Disposal
1. The School District and the Chemical Hygiene Officer shall ensure that disposal of laboratory
chemicals is in compliance with all applicable local, state, and federal regulations.
2. The School District and the Chemical Hygiene Officer shall ens u r e that drain disposal of
laboratory chemicals is in compliance with city of Janesville Sewer rules and regulations.
3. Guidelines for waste minimization:
a. Employees shall minimize generation of hazardous wastes (micro scale labs,
selecting less hazardous materials. etc.)
b. Chemicals must be ordered in quantities that are likely to be consumed in one
year or less. Put the date on the chemical container when received.
c. Avoid the inadvertent accumulation of hazardous waste. Potential waste
materials are surplus, old, and /or unnecessary chemicals. Every attempt must
be made to avoid accumulating such chemicals. Store chemicals for pickup
and disposal, away from the chemicals used and have them ready for summer
pickup.
4. Guidelines for hazardous waste disposal:
a. Flammable, combustible, water immiscible materials, or water -soluble
solutions of toxic substances shall not be poured down the drain.
b. Waste chemicals should be stored in appropriately labeled containers, inside
secondary containment. All federal, state, and local reg ulations regarding
proper disposal shall be followed at all times.
c. Hazardous wastes must never be placed in the common solid trash container.
d. When the waste containers become full, the containers shall be transferred to
a designated waste storage area within three (3) days.
e. Planning for lab experiments should include a discussion regarding proper
methods for disposing of the generated waste.
G. Spills
1. There is an emergency plan with names and numbers in each room with chemicals. Follow
the plan depending on the situation that takes place.
2. If the chemical involved in the spill is judged to present an immediate hazard, call 911
immediately. The area must be isolated until a HAZMAT team arrives, and evacuation
must occur.
3. If hazardous vapors are present, call 911 immediately and isolate the area. Only persons
trained in the use of respirators may enter the area. This will frequently mean waiting for the
arrival of a HAZMAT team.
4. If a volatile, flammable material is spilled, immediately exting uish flames, turn off all
electrical apparatus, and evacuate the area. Consult the MSDS for appropriate cleanup
procedures. If the quantity exceeds the employee's ability or training to handle the spill, seal
the area until appropriately trained personnel arrive.
5. If there is no immediate danger (flammability, toxicity, reactivity, corrosively) to personnel,
containment should be accomplished by use of spill pillows, towels, rolls, or other devices
that will keep the spill from spreading.
6. If there is no immediate danger, cleanup procedures listed on the MSDS will be followed.
Appropriate personal protective equipment will be used.
7. A spill kit must be centrally located, accessible, and for the exclusive use of the Science
Department. The kit must include:
a. Inert absorbents such as vermiculite, clay, sand, or kitty litter
b. Neutralizing agents for acid spills such as sodium carbonate and sodium hydrogen
carbonate
c. Neutralizing agents for alkali spills such a sodium hydrogen sulfate and citric acid
d. Quantities of cleanup materials sufficient for the largest anticipated spill.
e. Large plastic scoops and other equipment such as brooms, pails, bag, and dust
pans.
f.
Appropriate personal protective equipment
8. I f t h e spill material was a hazardous chemical, all of the materials involved in the cleanup
will usually be considered to be hazardous waste and must be disposed of as such.
9. If a spill occurs which cannot be cleaned-up safely by yourself, notify your Principal or
Administrator-in-Charge. Hazardous cleanup shall only be undertaken by individuals trained
in HAZMAT procedures.
IV. Control Measures
A. Personal Protective Equipment
1. It is the responsibility of the school district to provide appropriate safety and emergency
equipment for employees and students.
2. Protective apparel shall be compatible with the required degree of protection for the substances
being handled.
3. Laboratory aprons and eye protection are considered standard equipment for school laboratory
programs and must be readily available to employees and students.
4. All eye protection devices for chemicals must conform to ANSI Standard 287.1 -1989. Eyeglasses,
even with side shields, are not acceptable protection against chemica l splashes.
5. Chemical splash safety goggles should be used as the standard protective eyewear. Such
goggles should fit the face surrounding the eyes snugly to protect the eyes from a variety of
hazards.
6. Any experiment that involves heating, the use of chemicals, the use of glassware, or the use of a
sharp bladed instrument shall require the use of chemical splash safety goggles. The goggles also
protect the eyes from debris and flying objects.
7. The use of contact lenses should be avoided in the laboratory. If contact lenses are necessary,
chemical splash goggles must be worn at all times.
8. Full face shields protect the face and throat. They must be worn for protection when there is a
greater risk of injury from flying particles and harmful chemicals splashes. A full-face shield
should also be worn when an operation i n v olves a pressurized system that may explode or an
evacuated system that may implode. For full protection, safety goggles must be worn with th e
face shield.
9. Standing shields should be used when there is a potential for explosions, implosions, or
splashes, or when corrosive liquids are used. Goggles must be worn whenever using a standing
shield.
10. Fume hoods must be used with chemicals producing gases that are a hazard to breathing, even
if not poisonous.
11. Lab coats or aprons worn in the laboratory will offer protection from splashes and spills, and
must be easy to remove in case of an accident, and should be fire resistant.
12. When gloves are required, it should be remembered that no one kind of glove is suitable for all
situations. The MSDS should be consulted for information regarding the proper type of gloves to
be used. Under no circumstances are latex gloves to be purchased or used.
B. Administrative Controls
1. Inventory Control
a. The Chemical Hygiene Officer must ensure that the chemical list be updated at
least on an annual basis.
b. The chemical inventory for science should contain the following information about
each chemical found in storage: the chemical name, location, the date purchased,
the amount present, the CAS number, and the examination date for possible
disposal.
c. Every area in which chemicals are used or stored must have an up -to-date
chemical list.
d. A printed copy of the most recent chemical list for science per building must be
kept by the Principal and by the Chemical Hygiene Officer.
2. Hazard Identification and Labels
a. Labels on incoming containers of hazardous chemicals are not to be removed or
defaced.
b. Laboratory chemicals must be properly labeled to identify any hazards associated
with them for the employee's information and protection,
c. If a chemical is stored in its original bottle, it must have the manufacturer's original
label identifying potential hazards, and the date of purchase. the date opened, and
the initials of the person who opened the container.
d. If a chemical has been transferred to a secondary container, the new container
must be appropriately labeled with the chemical name, formula, concentration (if in
solution), solvent (if in solution), hazard warnings, and name or initials of the person
responsible for the transfer. This includes pm-made solutions for classroom
experiments.
e. Unlabeled bottles will not be opened, and such materials will be disposed of
promptly, as outlined in the section on disposal procedures.
3. Signs and Posters
a. Emergency telephone numbers will be posted in all laboratory areas.
b. Signs will be used to indicate the location of exits, evacuation routes, safety
showers, eyewash stations, fire extinguishers, fire blankets, first aid kits, fume
hoods, and other safety equipment.
c. Warning signs will be in areas or near equipment where special or unusual hazards
exist.
d. Posters to reinforce laboratory safety procedures will be displayed in the laboratory
and the classroom.
4. Material Safety Data Sheets
a. If not already on file, each MSDS received with incoming shipments of chemicals will
be maintained and made readily available to laboratory employees as a paper copy
and online with EMC.
b. A material safety data sheet for each compound on the chemical inventory will be
available in the department, except for those chemicals that predate the laboratory
standard. Material safety data sheets can often be obtained by requesting them from
companies that currently sell the chemicals if not found online.
c. Chemical manufacturers and suppliers are required to supply one copy of a material
safety data sheet the first time the chemical is purchased by the school or institution.
d. ESC at receiving will retain a copy of each MSDS as chemicals come in and they will
be put in a binder that will be given to EMC for online updates, and then given to the
Chemical Hygiene officer for inventory and chemical list updates.
5. Records
a.
Chemical Records
1. Annually, by the end of the school year, a list of all chemicals will be complied
and chemical usage determined for science areas and a chemical list update for
all other areas
2. The Chemical Hygiene Officer shall retain a copy of the chemical list
b.
Inspection Records
1. Reports must be completed and retained by the Chemical H ygiene Officer.
2. Safety equipment will be tagged to indicate the date and the results of the last
inspection.
c.
Training Records - The district will maintain records of employee training for at least
30 years and they should be made available to employee s.
d.
Incident Reports - A report must be completed for any incident involving student or
staff injures or overexposure to chemicals. Copies are to be sent to the ESC Business
and Employee Benefits offices and a copy must be retained by the school principal.
6.
e.
Medical and Exposure Records - Records of air concentration monitoring, exposure
assessments, medical consultations, and medical examinations must be kept for at
least 30 years after the employee ceases employment with the district at the ESC
Business and Employee Benefits offices
f.
Waste Disposal Records - The school district shall retain records of disposal of
hazardous waste at the ESC Business and Employee Benefit offices. The records
shall conform to the requirements of the Wisconsin Department of Natural
Resources.
g.
MSDS
The school will maintain a file of MSDSs and make them accessible to employees. If
an MSDS is not available when a new chemical is received, that chemical should not
be used until a MSDS is obtained. MSDS are also found online.
Exposure Monitoring
a.
If there is reason to believe that exposure levels for a regulated substance have
exceeded the action level or permission exposure limit, the Chemical Hygiene Officer
should monitor the safety of all students and st af f .
b.
If there is reason to believe that an exposure limit may have been exceeded, the
circumstances regarding the over-exposure must be documented, and Environmental
Services contacted by Dave Leeder head of maintaince.
c.
Signs or symptoms of exposure include skin or eye irritation, shortness of breath,
nausea, or headache. Some of these symptoms are generic, and can be due to many
other causes including emotional stress, flu, a viral infection, or a head cold.
V. Safety / Emergency Facilities and Equipment
A. Equipment
1. The school must ensure that adequate emergency equipment is available in the laboratory
and inspected periodically to ensure that it is functioning properly. All employees should be
trained in the use of each item.
2. Emergency equipment items that must be available include: eyewash station, fire
extinguisher of the appropriate type, safety shower, telephone for emergencies, fire blanket,
and identification signs.
3. Each chemical area must have a standard first aid kit stocked and the recommendations of
the school nurse and staff has access to the Emergency Nursing Manual in the nurse's office.
4. Multipurpose fire extinguishers must be available for the laboratory. A multipurpose, ABC,
fire extinguisher, can be used on all fires EXCEPT for Class D fires. Extinguishers must be
visually checked monthly by the 1 lead Custodian in each building and inspected and tested
annually by the company supplying the extinguishers.
5. Every eye wash station will be capable of supplying a continuous flow of aerated, tepid,
potable water to both eyes for at least 15 minutes. The valve should remain in the open
position without the need to hold the valve.
6. Safety showers should be capable of supplying a continuous flow of tepid potable water for
at least 15 minutes. The shower should have a quick -opening valve requiring manual
closing
7. Eye wash stations and safety shower stations will be located with easy access
8. Safety equipment must be inspected and checked monthly by the Head Custodian and
periodically by the staff using the equipment. All equipment will be tagged following an
inspection, showing the date of the inspection, the name of the inspector, and results.
9. Laboratories in which hazardous substances are being used should have spill control kits
tailored to deal with the potential risk associated with the materials being used. If there is
no immediate danger to employees or students, containment, should be accomplished by
spill pillows, towels, rolls, inert absorbents, neutralizing agents, or other devices.
B. Facilities
1. Fume hoods
a. Laboratory fume hoods are the most important components used to protect
laboratory employees and students from exposure to hazardous chemicals used in
the laboratory. Functionally, a standard fume hood is a fire and chemical resistant
enclosure with one opening (face) in the front with a movable window (sash) to allow
user access into interior. Large volumes of air are drawn through the face and out the
top to contain and remove contaminants from the laboratory.
b. Laboratory fume hoods are not meant for either storage or disposal of chemicals.
Nothing must be stored in a fume hood. It has to be ready for necessary lab use.
c. Laboratory activities that may release airborne contaminants above the Permissible
Exposure Limit (PEL) or Thresholds Limit Value (TLV) con centrations must be
carried out in the fume hood. Also, if laboratory activities produce potentially
hazardous vapors or gaseous substances, the laboratory activities must be conducted
in the fume hood.
d. In most cases, the recommended face velocity is betwe en 80 and 100 feet per
minute (fpm)
e. Fume hoods must be positioned in the laboratory so that air currents do not draw
fumes from the hood into the room.
f.
The exhaust from a fume hood will be in a vertical-up position to adjacent buildings to
avoid reentry of the exhaust into the building.
g. Fume hoods or other local ventilation devices will be used when working with any
appreciably volatile substance with a TLV of less than 50 ppm. (Standard)
h. A Work Order will be generated annually by the maintance personal and issued to
check the fume hoods for safe operation that meets all state and federal guidelines.
2. Ventilation
a. General laboratory ventilation will not be relied on for protection from exposure to
hazardous chemicals. A rate of 4-12 room air exchanges per hour should be the
accepted standard when local exhaust systems, such as hoods, are used as the
primary method of control.
b. Laboratory airflow should not be turbulent and should flow continuously throughout the
laboratory.
c. Any alteration of the ventilation system should be made only if through testing
indicates that employee and student protection from airborne toxic substances will
continue to be adequate.
d. Exhaust from the fume hoods must be vented directly to the outside.
e. When the fume hood is not in use all the doors must be pulled down in the closed
position.
3. Flammable Storage
a. Chemicals with a flash point below 93.3°C (200°F) should be considered "fire hazard
chemicals ' . Any chemicals whose MSDS or label states "Flammable" is in this
category.
b. Fire hazard chemicals in excess of 500 mL should be stored in a flammable solvent
storage area, safety cans, or in storage cabinets designed for flammable materials.
c. Flammable materials must be stored in a flammable liquid storage cabinet or other
appropriate location. When transferring significant quantities of flammable liquids
from one container to another, it is particularly important that they be properly
grounded to prevent accidental ignition of flammable vapors and liquids from static
electricity or other sources of ignition. Large quantities of flammable chemicals
stored outside cabinets should be in flame-proof storage cans which conform to
NFPA guidelines. NFPA 30, Flammable and combustible Liquids code, and NFPA 45,
Fire protection for laboratories using chemicals, and/or the applicable local fire codes
should be followed.
4. Electrical
a. All electrical outlets should have a grounding connection accommodating a threeprong plug.
b. All laboratories should have circuit breakers readily accessible. Employees must
know how to cut-off electricity to the laboratory in case of emergency.
c. All electrical outlets must be checked for continuity after initial occupancy or
whenever electrical maintenance or changes occur.
d. If electrical equipment shows evidence of undue heating, it should be immediately
unplugged.
e. Install ground-fault circuit interrupters (GFCIs) when required by code to protect
users from electrical shock, particularly if an electrical device is hand held during a
laboratory operation.
f.
Science instructors and/or departments must have access to circuit breaker panels
that control the electrical output to their laboratories and areas of responsibility.
VI . Training and Information
A . Training for Employees
1.General
a. At the beginning of each school year, the Chemical Hygiene Officer (IM) will provide
a safety training and review. At this time it is in the form of a video shown to all
district employees. A more detailed training for staff in the Science, Technology
Education, Art, Agriculture and FACE will occur during the in -service days before
students start school. Employees hired after the training will view the video before
they begin their employment. Supervision of employees by the CHO will occur
throughout the school year.
b. Each Middle School and High School building in the district will have a copy of the
CHP and access to the necessary MSDS in paper copy and online through EMC.
c. Such information shall be provided at the time of the employee's initial assignment to
a work area where hazardous chemicals arc present and prior to assignments
involving to exposure situations. The frequency of refresher information and training
shall be determined by the employer.
2. The objective of the employee training and information program is to assure that all individuals at
risk are adequately informed about; the physical and health hazards associated with hazardous
chemicals present in the laboratory; the proper procedures to minimize risk of exposure; and the
proper response to accidents.
3. The school district shall provide training opportunities for all individuals at risk. These training
opportunities should include information about the hazards of chemicals present in the laboratory
and sources of information concerning hazards in the laboratory. In particular, the training
program should cover the laboratory standard, material safety data sheets, the c hemical hygiene
plan, and the responsibilities of the district and the employee.
4. Employees must be trained on the potential chemical hazards in the employees' work areas and
on appropriate sections of the chemical hygiene plan. This training must be provi ded to all
employees who actually work in the laboratory as well as to other employees whose assignments
may require that they enter a laboratory where exposure to hazardous chemicals might occur.
5. Employees who are responsible for receiving and handling s hipments of new chemicals or
chemical wastes must also be informed of the potential hazards and appropriate protective
measures for chemicals they may receive.
6. Laboratory employees must be trained on the applicable details of the Chemical Hygiene Plan,
including a review of the general rules of laboratory safety. The training program must describe
appropriate sections of the standard operating procedures, particularly those procedures that
require prior approval of the Chemical Hygiene Officer.
7. The training that an employee receives will be determined by the nature of the work assignment
in the laboratory.
8. Employees and students will be trained how to protect themselves from exposure to hazardous
chemicals, including the location and proper use of protective equipment and emergency
equipment. In addition, the training must also include a discussion of inventory procedures to be
followed, proper storage and ordering rules, and district hazardous waste disposal procedures.
9. The training will include the following:
a. The people involved in chemical safety for the district
b. What constitutes a chemical
c. Proper labeling of the chemicals
d. How to read a MSDS
e. Remind employees to locate the MSDS and other safety signage at the start of the year
f. Proper signage in the chemical use areas
g. Proper chemical storage
h. Information on inventory and purchasing
i. Safety equipment procedure
j. Reporting an accident procedure
k. Accident and emergency procedures
l. Phone numbers for safety contact personal
m. The importance of chemical safety and working in a chemically safe environment for the
district employees and students
B. Training for Students
1. Instruction in laboratory safety will be provided to all students involved in laboratory activities.
2. The extent of student training should be based on their grade level, course of study, the
laboratory facility, school policies, the Chemical Hygiene Plan, and the level of chemical handling
and potential exposure to hazardous chemicals.
3. Safety training will include the importance and the content of the label and of material safety data
sheets. As appropriate, the student should also be introduced to other sources of chemical safety
information.
4. At the beginning of the school year and prior to laboratory activities, class time will be devoted to
safe laboratory practices and to the student safety agreement. A signed copy of each student ' s
safety agreement must be kept on file. No student may participate in lab experiments without an
executed student safety agreement.
5. A safety test will be given to all students in a lab class and all wrong answers will be retaught for
100 % knowledge of the safety material.
VII. Prior Approval
A. Prior approval must be obtained from the Chemical Hygiene Officer whenever a new or not
previously reviewed laboratory experiment or test is to be carried out. This prior approval must
also be sought for experiments that have not been performed recently or for which the potential
for harm is present. The potential for harm may be affected by a change in the amounts of
materials being used, the conditions under which the experiment is to be conducted, or the
substitution, deletion, or addition of a chemical.
V l ll . Procedure for Major Relocation of Chemicals within a Building
1. Reduce the chemicals by:
a. Following the removal policy and have the old or unused chemicals picked up by an authorized
disposal company when a spring pickup is organized.
b. When possible combine the chemical to one container
c.
Give the chemical to another teacher or building if it is needed
d. Teacher dispose of the chemicals following the proper procedure written out in the
Flinn Scientific Catalog
2. Make sure all the chemicals are in a proper container and labeled
3. Make sure all lids are tightened on the containers
4. All chemicals should be packed in the order of the proper shelving layout so, no sign of reaction can
occur (Refer to Flinn Scientific)
5. All chemicals in plastic containers can be packed and moved without any special instructions
6. All chemicals in glass containers need to be packed in packing material ( paper or bubble wrap )
7. All flammables need to be moved after students have left the bu ilding and need to be packed from
the flammable cabinet, moved and put right back into the new flammable cabinet ( check that there
are no sparks from construction during this process )
8. All acids need to be moved after students have left the building a nd need to be packed from the acid
cabinet, moved and put right back into the new acid cabinet.
9. Concentrated acid bottles need plastic covering during the move and carried alone or in small
packing containers.
10. Pack and move nitric acid separate from the other acids
11. Make sure nitric acid and acetic acid are not moved at the same time
Lab Safety Checklist
Building:
Inspector:
Date:
Yes/No or NA
Written Materials:
Sign with contact Personal
Emergency numbers
Known location of the
Chemical Hygiene Plan
Location of the chemical list
and MSDS
Personal Protective
equipment:
Lab coats
Gloves
Safety goggles
Other as needed
Safety Equipment Present
and Working
Emergency shower
Emergency eye-wash
Fire extinguisher
Fume hood
Biological safety cabinet
Spill kits
Chemical Storage:
All chemical containers
Gas cylinders
Check shelving
Rooms:
Comments
Chemicals are stored by
classes
Chemical storage locked
Chemicals stored below
shoulder height
Electrical:
Extension cords prohibited
Outlet extenders prohibited
Electrical cords in good
condition
Surge protectors where
needed
General Safety:
Aisles are kept clear
Work area clean and neat
Eating/drinking are prohibited
Waste Handling:
Chemical waste management
Biological waste management
Radiological waste
management
Glassware and sharps
management
Chemical Storage Inspection Checklist
This checklist will become part of the records that the CHO (IM) will keep for each
building. A copy will be kept in each building binder as well.
Building______________________
_______________________
Storage Location
Inspected by___________________
Date________________________
Conditions within storage area: S- satisfactory C- corrective action needed
1. All chemicals are clearly labeled
2. Chemicals are on secure shelving
3. The chemicals are located with proper system
4. Chemicals are spaced and allow easy removal for use
5. Quantities do not exceed a two year supply
6. No old or unused chemicals are stored
7. All chemical containers are in good shape
8. Chemical storage area is locked
9. A fire extinguisher is located in the area of chemicals
10. Spill control and cleanup materials are in the area
11. Chemical storage area floor is clear of clutter
12.There is a fast and easy entrance and exit to area
13.MSDS are available in a clearly marked area
14.Chemical storage area has adequate ventilation
15.Flammable containers are limited to one gallon sizes
16.None of the following chemicals are present:
a. Gasoline
b. Mercury
c. Benzoyl peroxide
d. Carbon disulfide
e. Ether
f.
Picric acid
g. Perchloic acid
h. Arsenic powder
i.
Arsenic oxides or chlorides
j.
Asbestos
k. Benzene
l.
Chromium powder
m. Chromium (IV) oxide
n. Lead arsenate
o. Sodium arsenate and arsenite
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Generic Chemicals Found In the Classroom or Lab That Need MSDS
Type of Product
Example Dish Soap
Name
Dawn
Manufacturer
Proctor and Gamble
1. Dish Soap__________________________________________________________________
2. Laundry Soap_______________________________________________________________
3. Liquid Hand Soap____________________________________________________________
4. Bar Hand Soap______________________________________________________________
5. Hand Sanitizer______________________________________________________________
6. Hand Lotion________________________________________________________________
7. Spray Disinfectant___________________________________________________________
8. Disinfectant wipes___________________________________________________________
9. Spray Cleaner (409)__________________________________________________________
10. SOS pads__________________________________________________________________
11. Powder cleanser____________________________________________________________
12. White board cleaner_________________________________________________________
13. Markers___________________________________________________________________
14. Paints_____________________________________________________________________
15. Glue______________________________________________________________________
16. Rubber Cement_____________________________________________________________
17. Sugar_____________________________________________________________________
18. Salt_______________________________________________________________________
19. Vinegar____________________________________________________________________
20. Iodine_____________________________________________________________________
21. Baking soda or powder________________________________________________________
22. Flour_____________________________________________________________________
23. Vegetable oil_______________________________________________________________
24. Pepper____________________________________________________________________
25. White out__________________________________________________________________
26. hydrogen peroxide__________________________________________________________
27. isopropyl alcohol or rubbing alcohol____________________________________________
28.
29.
30.
The Dos and Don'ts of
Chemical Labeling
Information on What's Required to Make
Your Lab Safe
At a recent chemistry meeting, a question
came up concerning the proper method
of labeling a chemical container. Of the
24 chemistry teachers in attendance,
not one of them was sure what kind of
information was required on a chemical
label.
In 1983, OSHA implemented the Hazard
Communication Standard (Right-to-Know
law). This standard gives teachers,
students and parents the right to know
about the hazards associated with the
chemicals they are using in the
classroom/laboratory. The standard
requires chemical manufacturers to
transmit this safety information to their
customers by means of labels and
Material Safety Data Sheets (MSDS).
Based on what we now know, how
should a chemical container or
bottle be labeled? We suggest
the best approach to proper
chemical container labeling is
to list these four items on the
label.
1.
Chemical Name-Spell out the
name correctly and
completely. Avoid using
abbreviations or chemical
formulas.
2.
Concentration-If the chemical
is in solution, indicate the
solution's molarity or strength.
3.
How can the chemical hurt
you? List in clear terms how
the chemical can hurt you and
what target organs will be
affected. This information can
easily be found on your MSDS
or in the Flinn Scientific
At the time, the only guideline for labeling was
that the label must list the "appropriate
hazard warnings." In 1994, OSHA
clarified this guidance and said that a
label must include "the specific physical
or health hazard(s) including target
organs affected."
OSHA also realized that labels may not be
large enough to list every possible warning so they said the label should provide
a brief summary of the hazards in a
highlighted form. When a teacher or
student needs in-depth information, they
should refer to the Material Safety Data
Sheet.
Catalog/ Reference
Manual. Avoid numerical or
alphabetical codes. These
codes are difficult to
remember and could easily be
misinterpreted. Use words that
everyone will understand.
4.
Date P r e p a r e d - K n o w i n g
the date the chemical was
prepared is very important,
especially for those chemicals
that have a limited shelf life or
become more hazardous with
age.
For example, let's say you just prepared
a 6 M hydrochloric acid solution. The
label should say:
Hydrochloric acid
6M solution
Corrosive to all body tissue,
especially skin and eyes. Avoid
all body- contact.
2005
Additional information may be required in
your state. A few states require the
National Fire Protection Association
(NFPA) code on the label. Other
states may require the Chemical
Abstract Services (CAS) number to
be on the label.
Finally, remember that this label may need
to be on the chemical container for
years to come. Avoid using grease
pencils and writing directly on the
bottle. Always use a permanent
marker on label paper that has a
good adhesive. Print clearly so
everyone can read and understand
the label you have prepared.
If you have questions regarding how to
label chemical containers, please
call us toll free at 1-800-452-1261.
We'll gladly help in any way we can.
17 Steps to Minimize Chemical
Waste
Smart, Inexpensive Practices to Avoid Chemical Disposal
The single largest chemical problem facing schools today is chemical disposal. The chemical disposal problem at your school
started the day the school was built. The purchasing of chemicals in large package sizes, poor chemical inventor y management,
teacher turnover, and changes in science curriculums are just a few of the many reasons why your school may have a chemical
disposal problem. What every school needs is a plan to minimize future chemical wastes. Chemical disposal is a necessary part
of any chemical laboratory activity. The following 17 steps will help reduce the amount of chemicals that nerd to be disposed and
make the disposal process easier to manage.
1. Maintain an up-to-date inventory of your chemicals.
Maintaining a good chemical inventory will eliminate buying excess or unneeded chemicals.
2. Purchase chemicals carefully.
Careful purchasing is the first step in decreasing the amount of unwanted chemicals and subsequent chemical
disposal. To reduce unwanted chemicals, purchase smaller size packages of chemicals, only what is needed for the
next 1 to 3 years, and only from chemical suppliers that will guarantee fresh chemicals. If you only need a dilute
solution of a chemical, buy the solution and not a large bottle of the solid. Buying chemicals in. bulk to save a few
dollars ends up costing more in the long term. Disposal of unused chemicals will always cost more than any cost
savings from larger sized packages.
3. Date and label your chemicals and only buy from chemical supply companies that date label their chemicals.
Chemicals age at different rates and knowing the age of your chemicals may help determine if they are still usable.
4. Use older chemicals first, before they decompose. This requires date labeling of chemicals.
5. Provide good climate control for the chemical storeroom.
Chemicals remain fresh longer when stored in a cool, dry environment. Heat and humidity quickly degrade chemicals
resulting in materials that are unsuitable for laboratory use and requiring disposal. This is particularly important during the
summer months when many schools turn off their air conditioning.
6. Providing a continuous air exchange in your storeroom is not only safer for you, but will provide a better environ ment for
storage of chemicals. Imagine the quality of reducing agents after being exposed to a continuous environment of chlorine gas.
7. Label all chemicals and laboratory solutions.
Any unlabeled bottle becomes a chemical disposal nightmare; first the chemical must be identified, then it must be
disposed. To avoid unknown and unwanted solutions, replace or repair old labels and immediately label all prepared
solutions.
8. Prepare only enough solution for immediate use.
Preparing extra solution for storage frequently results in many bottles of unwanted solutions that ultimately require
disposal.
9. Never accept donations of chemicals. These donations are usually of unknown age and unknown purity, why accept
someone else's garbage? Buy your own chemicals fresh for best results and longest shelf life.
10. Purchase chemical demonstration kits or chemistry student kits that contain exact quantities of chemicals. This
eliminates storage and disposal of "extra" chemicals. Flinn chemical demonstration kits contain enough chemicals to
present the demonstration seven times. At the end of the day, there are no unused or unwanted chemicals.
11. Microscale your labs. Microscale laboratory procedures can reduce your wastes a hundredfold. Many times, the
quantities produced in a microscale lab can be disposed of down the drain. If you microscale your labs, also
microscale the quantity of chemicals you purchase (see #2).
12. Dispose of waste chemicals immediately after they are generated.
Do not stockpile unwanted products or other laboratory wastes. Disposal of small quantities of chemicals is easier and
quicker than stockpiling them for a massive disposal at the end of the year.
13. Keep waste solutions separate. Never mix wastes from different labs unless the wastes have identical disposal
methods. Adding a small amount of a lead compound to a waste crock necessitates treating the entire waste crock as
a lead solution.
14. Store hygroscopic and deliquescent chemicals in Chem-Saf bags. Make sure the caps are on tight and use Parafilm
around the cap for extra protection. Chem-Saf bags and tight caps help keep moisture out of the container and
greatly lengthens shelf life.
15. Follow good laboratory practices. Never allow students to replace a chemical reagent bottle. Contamination from
student use will reduce purity and shelf life of a chemical.
16. Never store chemicals or solutions in a “homemade” bottle. Storing solutions in containers not designed for chemical
storage leads to a shorter shelf life of the chemical. The bottles do not provide suitable protection from the
environment.
17. Look at disposal procedures first. When choosing a lab or demonstration look at the disposal procedure first. If the
disposal procedure is difficult consider another technique. Avoid the use of heavy metals whenever possible.
MATERIAL SAFETY DATA SHEETS (MSDS) INFORMATION SUMMARY Webbased System for Managing MSDS Sheets
The District has begun to change to a web-based MSDS program called MSDS Manager. It
will initially supplement the current paper system and eventually eliminate the need for
paper copies. MSDS Manager will make MSDS sheets available for viewing and printing
by all employees. The MSDS Manager is specific to your facilities MSDS sheets.
The system is web-based and can be accessed through the internet or your facility server.
What is an MSDS?
An MSDS is a document that provides information about chemicals (e.g., common and
chemical name, hazardous ingredients. physical properties, health hazards, reactivity
information, control measures, special precautions, first aid information, fire fighting
procedure, and other information) that may be used in the workplace.
Why do we need an MSDS?
OSHA has a Hazard Communication Standard (1910.1200) that requires employers to
secure an MSDS for products their workers use. An employer must make them readily
available to employees. Besides being required by law, an MSDS provides helpful
information that can help prevent workplace injuries and illnesses. The MSDS for a
product should be reviewed prior to using the material. Reviewing the MSDS helps the
employee become aware of hazards associated with the material, learn how to protect
themselves and others, and know important first aid information.
Where does an MSDS come from?
Manufacturers and suppliers of chemicals are required to provide a MSDS when they send
chemicals to the end user. An MSDS should be sent at least the first time the product is
shipped to whoever purchased it. If the MSDS is updated, the supplier should send the
updated MSDS the next time the product is purchased. Some suppliers just send an
MSDS with every shipment.
Where can MSDS be located in your building now?
Employers are required to make an MSDS readily accessible during each work shift to
employees while they are in their work area. Most employers have a binder with paper
copies of commonly used materials in each building. They are usually located in the
main office or the custodial office. Custodians usually have copies of an MSDS that
pertains to their job in their chemical storage closets. Instructors or departments who use
chemicals on a regular basis should have an MSDS for materials that they use.
The system will eventually eliminate the need for paper copies.
What are my responsibilities?

If you are in charge of purchasing your own materials be sure to get an MSDS for the
materials you purchase.

An inventory should be taken of the materials you already have. If you don't have MSDS
for some of your materials, contact the suppliers to get them.

You should give a copy of the MSDS for the materials you have to the Facilities
Department.

Do not bring in chemicals from home for which there is no MSDS.

Be sure to review the MSDS for the materials that you use to help prevent injuries or
illnesses to yourself and others.

Contact the Facilities Department with any questions. Thank you in advance for helping
make your work place safer.
School District of Janesville – Crisis Communications Plan
CHEMICALS/HAZARDOUS MATERIALS
Eye Contact/Inhalation of Chemicals
Flush eyes with water for at least 15 minutes at the eyewash station.
Phone for emergency help; 9-911.
Call Poison Control Center in Madison; 1-800-222-1222.
______ If necessary call the ESC- Bill Samborski, (608) 743-5016 or Dave Leeder,
(608)751-1030 cell
Notify the parent or guardian.
Locate the Material Safety Data Sheet for that particular chemical (on file in the instructional area
or work place) and treat victim according to the recommendation.
Save the chemical container.
Ingestion of Chemicals
Phone for emergency help; 9-911.
Call Poison Control Center in Madison; 1-800-222-1222.
Attempt to learn exactly what substances were ingested and inform the medical staff at Poison
Control Center.
______ If necessary call the ESC- Bill Samborski, (608) 743-5016 or Dave Leeder,
(608)751-1030 cell
Notify the parent or guardian.
Locate the Material Safety Data Sheet for that particular chemical (on file in the instructional area
or work place) and treat victim according to the recommendation.
Save the chemical container.
Chemicals Spilled on the Body over a Large Area
Quickly remove all contaminated clothing while using the safety shower. Every second counts.
Waste no time because of modesty.
Immediately flood the affected body area with cold water for at least 15 minutes; resume if pain
returns.
Phone for emergency help; 9-911.
Call Poison Control Center in Madison; 1-800-222-1222.
______ If necessary call the ESC- Bill Samborski, (608) 743-5016 or Dave Leeder,
(608)751-1030 cell
Notify the parent or guardian.
Locate the Material Safety Data Sheet for that particular chemical (on file in the instructional area
or work place). Treat victim according to the recommendations.
Wash off chemicals using a mild detergent or soap (preferred) and water. Do NOT use
neutralizing chemicals, unguents, or salves.
Save the chemical container.
Chemicals on the Skin in a Small Confined Area
Immediately flush with cold water and wash by using a mild detergent or soap (preferred) and
water.
If there is no visible burn, scrub with warm water and soap, removing any jewelry in the affected
area.
Locate the Material Safety Data Sheet for that particular chemical (on file in the instructional area
or work place). Treat victim according to recommendations.
Notify the parent or guardian and encourage them to contact their doctor for a medical opinion.
If a delayed action is noted (the physiological effects of some chemicals such as methyl and ethyl
bromides may be delayed as much as 48 hours), obtain medical attention promptly and explain
carefully what chemicals were involved.
Save the chemical container.
Handling of Spilled Liquids
Attend to any person who may have been contaminated.
Evacuate all nonessential personnel from the spill area.
If the spilled material is flammable, turn off ignition and heat source.
Avoid breathing the vapors of the spilled material.
Secure supplies needed for cleanup.
Locate the Material Safety Data Sheet for that particular chemical (on file in the instructional
area or work place).
*
All incidents involving chemicals or hazardous materials will be reported to the Building Science
Designee and to the Chemical Hygiene Officer, Deb Hilger (608) 743-5648. If necessary call the ESCBill Samborski, (608) 743-5016 or Dave Leeder (608)751-1030
Science:Hilger:Chemicals Hazardous Materials
Rev. 6/
Flinn Scientific's Student Safety Contract
Purpose
Science is a hands-on laboratory class. You will be doing many laboratory activities which require the use of hazardous
chemicals. Safety in the science classroom is the #1 priority for students, teachers, and parents. To ensure a safe science
classroom, a list of rules has been developed and provided to you in this student safety contract. These rules must be followed at
all times. Two copies of the contract are provided. One copy must be signed by both you and a parent or guardian before you can
participate in the laboratory. The second copy is to be kept in your science notebook as a constant reminder of the safety rules.
General Guidelines
1. Conduct yourself in a responsible manner at all times in the laboratory.
2. Follow all written and verbal instructions carefully. If you do not understand a direction or part of a procedure, ask the instructor
before proceeding.
3. Never work alone. No student may work in the laboratory without an instructor present.
4. When first entering a science room, do not touch any equipment, chemicals, or other materials in the laboratory area until you
are instructed to do so.
5. Do not eat food, drink beverages, or chew gum in the laboratory. Do not use laboratory glassware as containers for food or
beverages.
6. Perform only those experiments authorized by the instructor. Never do anything in the laboratory that is not called for in the
laboratory procedures or by your instructor. Carefully follow all instructions, both written and oral. Unauthorized experiments are
prohibited.
7. Be prepared for your work in the laboratory. Read all procedures thoroughly before entering the laboratory. Never fool around
in the laboratory. Horseplay, practical jokes, and pranks are dangerous and prohibited.
8. Observe good housekeeping practices. Work areas should be kept clean and tidy at all times. Bring only your laboratory
instructions, worksheets, and/or reports to the work area. Other materials (books, purses, backpacks, etc.) should be stored in
the classroom area.
9. Keep aisles clear. Push your chair under the desk when not in use.
10. Know the locations and operating procedures of all safety equipment including the first aid kit, eyewash station, safety
shower, fire extinguisher, and fire blanket. Know where the fire alarm and the exits are located.
11. Always work in a well-ventilated area. Use the fume hood when working with volatile substances or poisonous vapors. Never
place your head into the fume hood.
12. Be alert and proceed with caution at all times in the laboratory. Notify the instructor immediately of any unsafe conditions you
observe.
13. Dispose of all chemical waste properly. Never mix chemicals in sink drains. Sinks are to be used only for water and those
solutions designated by the instructor. Solid chemicals, metals, matches, filter paper, and all other insoluble materials are to be
disposed of in the proper waste containers, not in the sink. Check the label of all waste containers twice before adding your
chemical waste to the container.
14. Labels and equipment instructions must be read carefully before use. Set up and use the prescribed apparatus as directed in
the laboratory instructions or by your instructor.
15. Keep hands away from face, eyes, mouth and body while using chemicals or preserved specimens. Wash your hands with
soap and water after performing all experiments. Clean (with detergent), rinse, and wipe dry all work surfaces (including the sink)
and apparatus at the end of the experiment. Return all equipment clean and in working order to the proper storage area.
16. Experiments must be personally monitored at all times. You will be assigned a laboratory station at which to work. Do not
wander around the room, distract other students, or interfere with the laboratory experiments of others.
17. Students are never permitted in the science storage rooms or preparation areas unless given specific permission by their
instructor.
18. Know what to do if there is a fire drill during a laboratory period; containers must be closed, gas valves turned off, fume hoods
turned off, and any electrical equipment turned off.
19. Handle all living organisms used in a laboratory activity in a humane manner. Preserved biological materials are to be treated
with respect and disposed of properly.
20. When using knives and other sharp instruments, always carry with tips and points pointing down and away. Always cut away
from your body. Never try to catch falling sharp instruments. Grasp sharp instruments only by the handles.
Clothing
21. Any time chemicals, heat, or glassware are used, students will wear laboratory goggles. There will be no exceptions to this
rule!
22. Contact lenses should not be worn in the laboratory unless you have permission from your instructor.
23. Dress properly during a laboratory activity. Long hair, dangling jewelry, and loose or baggy clothing are a hazard in the
laboratory. Long hair must be tied back and dangling jewelry and loose or baggy clothing must be secured. Shoes must
completely cover the foot. No sandals allowed.
24. Lab aprons have been provided for your use and should be worn during laboratory activities.
Accidents and Injuries
25. Report any accident (spill, breakage, etc.) or injury (cut, burn, etc.) to the instructor immediately, no matter how trivial it may
appear.
26. If you or your lab partner are hurt, immediately yell out "Code one, Code one" to get the instructor's attention.
27. If a chemical should splash in your eye(s) or on your skin, immediately flush with running water from the eyewash station or
safety shower for at least 20 minutes. Notify the instructor immediately.
28. When mercury thermometers are broken, mercury must not be touched. Notify the instructor immediately.
Handling Chemicals
29. All chemicals in the laboratory are to be considered dangerous. Do not touch, taste, or smell any chemicals unless
specifically instructed to do so. The proper technique for smelling chemical fumes will be demonstrated to you.
30. Check the label on chemical bottles twice before removing any of the contents. Take only as much chemical as you need.
31. Never return unused chemicals to their original containers.
32. Never use mouth suction to fill a pipet. Use a rubber bulb or pipet pump.
33. When transferring reagents from one container to another, hold the containers away from your body.
34. Acids must be handled with extreme care. You will be shown the proper method for diluting strong acids. Always add acid to
water, swirl or stir the solution and be careful of the heat produced, particularly with sulfuric acid.
35. Handle flammable hazardous liquids over a pan to contain spills. Never dispense flammable liquids anywhere near an open
flame or source of heat.
36. Never remove chemicals or other materials from the laboratory area.
37. Take great care when transferring acids and other chemicals from one part of the laboratory to another. Hold them securely
and walk carefully.
Handling Glassware and Equipment
38. Carry glass tubing, especially long pieces, in a vertical position to minimize the likelihood of breakage and injury.
39. Never handle broken glass with your bare hands. Use a brush and dustpan to clean up broken glass. Place broken or waste
glassware in the designated glass disposal container.
40. Inserting and removing glass tubing from rubber stoppers can be dangerous. Always lubricate glassware (tubing, thistle
tubes, thermometers, etc.) before attempting to insert it in a stopper. Always protect your hands with towels or cotton gloves
when inserting glass tubing into, or removing it from, a rubber stopper. If a piece of glassware becomes "frozen" in a stopper,
take it to your instructor for removal.
41. Fill wash bottles only with distilled water and use only as intended, e.g., rinsing glassware and equipment, or adding water to
a container.
42. When removing an electrical plug from its socket, grasp the plug, not the electrical cord. Hands must be completely dry
before touching an electrical switch, plug, or outlet.
43. Examine glassware before each use. Never use chipped or cracked glassware. Never use dirty glassware.
44. Report damaged electrical equipment immediately. Look for things such as frayed cords, exposed wires, and loose
connections. Do not use damaged electrical equipment.
45. If you do not understand how to use a piece of equipment, ask the instructor for help.
46. Do not immerse hot glassware in cold water; it may shatter.
Heating Substances
47. Exercise extreme caution when using a gas burner. Take care that hair, clothing and hands are a safe distance from the
flame at all times. Do not put any substance into the flame unless specifically instructed to do so. Never reach over an exposed
flame. Light gas (or alcohol) burners only as instructed by the teacher.
48. Never leave a lit burner unattended. Never leave anything that is being heated or is visibly reacting unattended. Always turn
the burner or hot plate off when not in use.
49. You will be instructed in the proper method of heating and boiling liquids in test tubes. Do not point the open end of a test
tube being heated at yourself or anyone else.
50. Heated metals and glass remain very hot for a long time. They should be set aside to cool and picked up with caution. Use
tongs or heat-protective gloves if necessary.
51. Never look into a container that is being heated.
52. Do not place hot apparatus directly on the laboratory desk. Always use an insulating pad. Allow plenty of time for hot
apparatus to cool before touching it.
53. When bending glass, allow time for the glass to cool before further handling. Hot and cold glass have the same visual
appearance. Determine if an object is hot by bringing the back of your hand close to it prior to grasping it.
Questions
54. Do you wear contact lenses?
YES
NO
55. Are you color blind?
YES
NO
56. Do you have allergies?
YES
NO
If so, list specific allergies
______________________________________
__________________________________________
Agreement
I, ______________________________________
(Student´s name) have read and agree to follow all of the safety rules set forth in this contract. I realize that I must obey these
rules to insure my own safety, and that of my fellow students and instructors. I will cooperate to the fullest extent with my
instructor and fellow students to maintain a safe lab environment. I will also closely follow the oral and written instructions
provided by the instructor. I am aware that any violation of this safety contract that results in unsafe conduct in the laboratory or
misbehavior on my part, may result in being removed from the laboratory, detention, receiving a failing grade, and/or dismissal
from the course.
Student Signature
__________________________________________________
Date : ________________________
Dear Parent or Guardian:
We feel that you should be informed regarding the schools effort to create and maintain a safe science classroom/laboratory
environment.
With the cooperation of the instructors, parents, and students, a safety instruction program can eliminate, prevent, and correct
possible hazards.
You should be aware of the safety instructions your son/daughter will receive before engaging in any laboratory work. Please
read the list of safety rules above. No student will be permitted to perform laboratory activities unless this contract is signed by
both the student and parent/guardian and is on file with the teacher.
Your signature on this contract indicates that you have read this Student Safety Contract, are aware of the measures taken to
insure the safety of your son/daughter in the science laboratory, and will instruct your son/daughter to uphold his/her agreement
to follow these rules and procedures in the laboratory.
Parent/Guardian Signature
_____________________________________
Date : ___________________
Parent / Guardian e-mail:
_________________________________________________
FLINN SCIENTIFIC, INC.
"Your Safer Source for Science Supplies"
Flinn Scientific, Inc. All Rights Reserved. Reproduction permission is granted to science teachers who are current customers of
Flinn Scientific, Inc.
Elementary Highlights for Chemical Safety
Label all containers: What is in the container.
Storage area sign: Staff only or Staff use only
Put all chemicals in one designated spot, that means the ones you are using
and any extra that were purchased
Make sure the storage area is not above shoulder high for safety.
Many are putting the storage under the sink.
Label a cupboard or closet door with a Staff use only sign and keep the
chemicals behind those doors
Do not put food in the same cupboard with the chemicals because of fumes.
If hand lotion or sanitizer is used make sure they are out in small containers
for the students and refill from the larger containers.
Keep batteries in plastic bags or containers in case of leakage
Keep a binder in the main office of MSDS sheets and communications
Possible Materials the need an MSDS
White board cleaner
Rubbing alcohol
Rubber cement
Iodine
Any cleaning supplies
Paints
Inks
Batteries
Vinegars
Hydrogen Peroxide
Janesville Elementary Schools Checklist for Chemical Hygiene
1. Binder in the main office of each Elementary Building that
includes:
a. A copy of MSDS for all chemicals in the building
b. A copy of requirements for proper storage and
labeling of chemicals
c. A copy of proper employee use of chemicals
1. Custodian closets and areas locked
2. All custodian containers labeled in the building
3. Teacher and support staff in the classroom
d. Other inserts from the Chemical Hygiene IM
2. Warning signs on chemical storage areas
3. Chemical storage areas off limits to student
a. Custodian closets also, locked
4. All chemicals in one area of the room
5. All chemical containers labeled
6. Continue to reduce several brands of the same item, be
consistent with the same brand (ex dish soap or hand
sanitizer)
7. For questions or concerns call Deb Hilger ext: 5648
Middle School Meeting Notes
Date
Chemical Hygiene IM Deb Hilger
School______________________
1. Dept of Commerce has state requirements we must meet
2. All departments have chemicals: hand sanitizer white board cleaner dish soap glue etc
3. Storage
a. Everything properly labeled
b. Stored shoulder height
c. Under lock and key
d. Flammables in cabinet and acids in cabinets
e. No food items in with the chemicals
f.
Warning label on the door or drawer
4. I f chemicals are out in the room labeled and in small containers.
5. Put chemicals back in a timely fashion
6. Read the MSDS Material Safety Data Sheet for proper safety and disposal
7. A binder of paper MSDS should be in a location that is easy to access
8. There will be a online service soon on the District W eb site
9. Take out unused chemicals or old chemicals for a chemical pickup which if the district
has one will be in June
10. Use Green products when possible
11. Keep an updated inventory of your chemicals and the MSDS
12. All safety equipment for example eyewash, shower and fire extinguishers will be
checked monthly by the custodians
13. There will be a tag on the equipment for them to initial that it is functioning properly
14. An emergency protocol sheet will be on the wall in each room with chemicals
15. Communication is important between the teacher and the custodians about chemicals
in the waste baskets on a daily basis
16. Make sure nothing is blocking the emergency equipment or the electric panels
17. Other concerns
18. Questions
19. Notes:
Janesville Middle Schools Checklist for Chemical Hygiene
1. Binder in the main office of each Middle Building that
includes:
a. A copy of MSDS for all chemicals in the building
b. A copy of requirements for proper storage and
labeling of chemicals
c. A copy of proper employee use of chemicals
1. Custodian closets and areas locked
2. All custodian containers labeled in the building
3. Teacher and support staff in the classroom
d. Other inserts from the Chemical Hygiene IM
2. Warning signs on chemical storage areas
3. Chemical storage areas off limits to student
a. Custodian closets also, locked
4. All chemicals in one area of the room
5. All chemical containers labeled
6. Continue to reduce several brands of the same item, be
consistent with the same brand (ex dish soap or hand
sanitizer)
7. For questions or concerns call Deb Hilger ext: 5648
.
n.
Chemical Hygiene IM Deb Hilger
Phone 5648
Home School Parker HS
Chemical Hygiene Compliance Issues
1. Label all the chemicals properly.
2. Storage of all chemicals in the chemical storeroom or storeroom in different curricular
areas, with a chemical sign on the door.
3. When the chemicals are in use, they are properly labeled for the students.
4. Put the chemicals back in storage in a timely fashion.
5. Read MSDS for proper disposal.
6. Thin out the unused chemicals from the departments and we will have a hazardous
chemical pickup toward the end of the school year.
7. All proper safety equipment is in each room and labeled with a monthly safety check tag
for custodians.
8. All safety equipment is up to date and is functioning properly.
9. MSDS paper copies in each room that uses the chemica ls.
10. Emergency protocol sheets are visible in each room that uses chemicals.
11. No emergency equipment or electric panels blocked.
12. Use green products when possible.
13. Have an updated inventory of the department's chemicals.
14. Communication with custodians when was te chemicals in wastebaskets.
15. Other concerns
Application For Use Of School Facilities
School District of Janesville - Business Office 527 S. Franklin St., Janesville, WI 53548
(608) 743-5100
Fax (608) 743-5101
Facilities Direct #
Date Invoiced: _______________
1. Name of organization: ______________________________________________________________________________________________
2. Building to be used: _______________________________________ 3. Dates of Use:___________________________________________
4. Areas/Rooms of Building to be used: __________________________________________________________________________________
5. Hours of access to building: __________________________________ Actual hours of program: ________________________________
Any changes in hours or dates for use of the building must be cleared through the B u s i n e s s Office before access is permitted into the
building. Any cancellations must be made 24 hours prior to use of building or charges may be assessed.
I f the school district closes the requested building for any unforeseen emergency, all building use requests will be cancelled.
6. Please describe the intended use of the facility, the nature of the program, and who will be participating and/or the intended audience.
7. Admission/fee/collection and use to be made of proceeds: _________________________________________________________________
8. Equipment needed:
TV
VCR
Microphone
Overhead Projector
Screen
Podium
Other: ________________________________________________________________________________________________________
9. Permission to bring into building (equipment /apparatus): __________________________________________________________________
10.
The undersigned, who is in charge, is 21 years of age or over and agrees that he/she will be responsible to the
School District for the use and care of the school property. He/she further agrees that the character of the
entertainment use will conform to that stated on the application.
Print Name
Address
11.
12.
13.
Signature
City
State Zip
Date
Phone Number
It is understood that the group using the school facilities will provide its own first aid equipment/supplies when in the building.
Please refer to the reverse side of this application for the rules and regulations applying for use of facilities.
Every individual, group or organization requesting use of facilities within the scope of this policy and regulations must have an
approved Application for Use of School Facilities form before the facility will be available to them.
14. APPROVED: _______ __________________________________________________ Date: _____________________________________
Principal
APPROVED: ______ __________________________________________________ Date: _____________________________________
Director of Business Services
15. Charges (will be billed after use):
16. Comments:
BUILDING RENTAL PROCEDURES AND REGULATIONS
1.
REGULATIONS: All regulations, including City, State, Federal, Fire and Safety and by the Janesville School District, must be adhered
to.
2.
OBSTRUCTIONS: Aisles are to be used only for passage. No equipment, etc., are allowed. No persons are to block the aisles. Only
exception is a person designated for crowd control.
3.
NO SMOKING: According to Board Policy, there is to be no smoking in the buildings at any time. This is per Board Policy
#3645, Administrative Regulation #3645.1, City of Janesville Ordinance 8.74, Wisconsin Statute 101.123 - Clean Indoor Air Act.
4.
CONDUCT CONTROL: Performer/Audience - extra crowd control, including police, security, etc., which may be required to control
crowd will be furnished by the renting organization. The renting organization will be responsible for the conduct of representatives,
performers and workers while in the auditorium and related areas.
5.
ALCOHOLIC BEVERAGES: STRICTLY FORBIDDEN IN THE BUILDING OR ON THE SCHOOL PREMISES. NO REFRESHMENTS OF
ANY KIND SHALL BE TAKEN ON STAGE OR BACKSTAGE OR IN THE AUDITORIUM.
6.
PICTURES/SOUND RECORDING: All photos, sound-recordings and videotape recordings are prohibited during performances. Any
professional radio, TV or videotaping must be cleared with performers or their representatives and the auditorium manager prior to
performances.
7.
PERSONNEL: All operating personnel, such as stage crew, ushers, etc., will be cleared through the auditorium manager. Adequate and
trained stage crew sound and lighting technicians will be provided to the renting organization for an additional charge. The renting
organization will provide their own ushers, ticket sellers, crowd control personnel, etc. The renting organization will be informed of all
procedures and regulations by written and verbal communication.
8.
PIANOS: Use of pianos must be approved by the auditorium manager. Any tuning or work on the piano must also be approved and done
by the designated tuner/technician. Tuning or work will be billed to the rental organization.
9.
CONDITION OF AUDITORIUM: The renting organization shall leave the stage and related areas clear and clean after the final
performance. All stage equipment, etc. must be returned to its previous location and be in proper order. The renting organization may be
billed for any necessary cleaning, damage to equipment, etc.
10. STAGE WORK: All stage work shall be done at the renting organization's expense and under the supervision of and subject to the
approval of the auditorium manager or authorized assistant.
11. CONCESSIONS: The renting organization shall not sell or serve cigarettes, cigars, beverages, food, gum, candy, etc. in the auditorium
or allow same to be brought into the auditorium. Selling or serving food or beverages and related concessions in areas other than the
auditorium is strictly limited and requires prior approval.
12. INSTALLATIONS: The renting organization shall not erect any equipment, etc. without consent of the auditorium manager. Any major
installations should be checked with the auditorium manager prior to signing the contract, to prevent possible contractual problems later.
No substances of an explosive or highly flammable nature will be permitted. No electrical wiring will be installed or changed in the
present electrical systems without written or verbal consent of the auditorium manager. Use of tapes or other adhesives, nails, tacks,
screws, etc. are not allowed on walls, stage floor, or curtains. All decorations, etc. must be put up without defacing the building and shall
be subject to approval and supervision of the auditorium manager or authorized assistant.
13. OPERATION OF EQUIPMENT: Operation of lighting equipment, counterweight system for stage curtains, backdrops, etc., and sound
equipment, is handled by the auditorium stage crew. Any operation by others must be approved and supervised by the auditorium
manager or authorized assistant.
14. CHEMICAL USE: Any nonfood item - substance brought in must have a Material Safety Data Sheet (MSDS) with it. This includes
cleaners, materials used for the building and demonstration materials. Under no circumstances can any flammable, caustic or corrosive
materials be allowed in the building.
15. INSURANCE: All groups or individuals may be required to provide a Certificate of Insurance or purchase special event insurance
depending on the nature of the intended use.
16. AUTOMATIC EXTERNAL DEFIBRILLATORS: An Automatic External Defibrillator ("AED") may be maintained in the building to be used
under this application. Permission is granted to the applicant for use of school facilities under this Application shall not constitute a
license or permission to make use of the AED. The School District assumes no liability to assure that said AED is accessible or in
working condition. If said AED is used by the applicant, such usage shall be at the applicant's own risk. Under no circumstances shall
the AED be used unless the user has received the appropriate training under Section 146.50(8g) of the Wisconsin Statutes. In the event
the AED is used by the applicant or its agents, applicant shall indemnify and hold the School District and its officers, board members,
employees and agents, from any and all liability for claims, demands, costs, damages and expenses of any kind and description or
damage to persons or property arising out of or in connection with or occurring as a result of the usage of the AED.
TABLE II. FILTER LENSES FOR PROTECTION AGAINST RADIANT ENERGY
Operations
Electric Size 1/32 in.
Arc Current
Minimum*
Protective Shade
Less than 3
3-5
5-8
Less than 60
60 - 160
160 - 250
More than 8
250 - 550
7
8
10
11
Gas metal arc welding
and flux cored arc
welding
Less than 60
60 - 160
160 - 250
250 - 500
7
10
10
10
Gas Tungsten arc
welding
Less than 50
50 - 150
150 - 500
8
8
10
Less than 500
500 - 1000
10
11
Less than 20
20
100
100-400
400 - 800
6
8
10
11
Less than 300
300 - 400
400 - 800
8
9
10
Shielded metal arc
welding
Air carbon
Arc cutting
Light
Heavy
Plasma arc welding
Plasma arc cutting
Light**
Medium**
Heavy**
Torch soldering
2
Torch brazing
Carbon arc welding
3
14
Operations
Gas Welding:
Light
Medium
Heavy
Oxygen Cutting:
Light
Medium
Heavy
Plate Thickness inches
Minimum*
Plate Thickness - mm
Protective Shade
Under lbs
*
to 12
Over 1/2
Under 1
1 to 6
Over 6
Under 3.2
3.2 to 12.7
Over 12.7
4
5
6
Under 25
25 to 150
Over 150
3
4
5
* As a rule of thumb, start with a shade that is too dark to see the weld zone. Then go to a lighter shade which
gives sufficient view of the weld zone without going below the minimum. In oxyfuel gas welding or
cutting where the torch produces a high yellow light, it is desirable to use a filter lens that absorbs the
yellow or sodium line in the visible light of the (spectrum) operation.
** These values apply where the actual arc is clearly seen. Experience has shown that lighter filters may be
used when the arc is hidden by the work piece.
Tasks
Potential Hazard
Working with cryogenic
Major skin, tissue and eye
liquids
damage
Working with very cold
materials and equipment
(freezers, dry ice)
Skin damage
PPE Recommended
Safety glasses or goggles for large
volumes or splash hazards
Heavy insulated gloves
Lab coat, closed shoe
Safety glasses
Insulated gloves
Lab coat, closed shoe
Working in cold
environments (walk-in cold
rooms or freezers)
Working with hot liquids,
equipment and/or open
flames (autoclave, Bunsen
burner, waterbath, oil bath)
Frostbite (skin damage)
Hypothermia
Working with large volumes
of hot, cold, or cryogenic
liquids
Major skin and eye damage
Frozen or burned body
tissues
Working with Ultraviolet
Radiation
Conjunctivitis
Corneal eye damage
Erythema
UV face shield and goggles
Lab coat, closed shoe
Retinal eye damage
Skin damage
Appropriate shaded goggles with
optical density based on individual
beam parameters
Lab coat, closed shoe
No jewelry/reflective items allowed
Working with LASER
Skin damage
Eye damage
radiation
Safety glasses
Insulated gloves and warm clothing
Lab coat, closed shoe
Safety glasses or goggles for large
volumes or splash hazards
Insulated gloves
Lab coat, closed shoe
Safety glasses or goggles and face
shield
Heavy insulated gloves
Above clothes and apron or coveralls
NOTE: Please reference the specific glove manufacturer's selection chart for proper selection of all
gloves based on the specific hazard.
Tasks
Working with small volumes
of corrosive liquids < 1 liter
Potential Hazard
Skin and eye damage
PPE Recommended
Safety glasses, goggles (if splash
hazard), Light chemical resistant
gloves, Lab coat, closed shoes
Working with large volumes
of corrosive liquids >1 liter,
acutely toxic corrosives or
work which may create a
splash hazard
Large surface area skin
damage. Poisoning potential
through skin absorption
Safety goggles & face shield
Appropriate heavy resistant gloves
Above clothes and chemical resistant
apron
Working with small volumes
organic solvents < 1 liter
Skin and eye damage
Slight poisoning potential
through skin absorption
Working with large volumes
of organic solvents > 1 liter,
very dangerous organic
solvents or work which may
create a splash hazard
Major skin and eye damage,
poisoning through skin
absorption
Safety glasses, goggles (if splash
hazard), Light chemical resistant
gloves, lab coat and closed shoes
hazard),
Safety & face shield or goggles
gloves
Appropriate heavy resistant gloves
gloves,
Lab coat,
shoeresistant
Above clothes
andclosed
chemical
apron
NOTE: Please reference the specific glove manufacturer's selection chart for proper selection of all
gloves based on the specific hazard.
Tasks
Working with small volumes
of human blood, body fluids
or other Bloodborne
Pathogens (BBP)
Working with large volumes
of human blood, body fluids
or other Bloodborne
Pathogens (BBP) and/or
splash hazards
Working with hazardous
powders
Working with acutely toxic
hazardous powders
Working with radioactive
materials
Working with radioactive
chemicals (corrosives,
solvents, powders, etc.)
Working with radioactive
human blood, body fluids or
other BBPs
Potential Hazard
Potentially infectious disease
(BBP) Potential spread of
infectious disease
Increased potential of
becoming infected with
infectious disease (BBP)
Increased potential spread of
infectious disease
Potential skin and eye
damage, Potential for
poisoning through skin
absorption
Great potential skin and eye
damage
Great potential for poisoning
through skin absorption
Potential cell damage
Potential spread of
radioactive materials
See appropriate chemical
section above
Potential cell damage.
Potential spread of
radioactive materials
Potential cell damage
Potential spread of
radioactive materials
Potential BBP exposure
PPE Recommended
Safety glasses, latex gloves
Lab coat, closed shoe
Safety goggles & face shield
Latex gloves
Lab coat, closed shoe
coveralls and foot covers may be
necessary
Safety glasses
Goggles for large quantities
Chemical resistant gloves
Lab coat, closed shoe
Safety goggles
Appropriate heavy resistant gloves
Lab coat, closed shoe
Coveralls and booties if necessary
Safety glasses, goggles splash hazard
Latex gloves
Lab coat, closed shoe
Safety glasses, goggles splash hazard
Chemical resistant gloves
Lab coat, closed shoe
Use PPE for applicable tasks above
Safety glasses, goggles splash hazard
Latex gloves
Lab coat, closed shoe
NOTE: Please reference the specific glove manufacturer's selection chart for proper selection of all gloves
based on the specific hazard.
Tasks
Working with Infrared (IR)
emitting equipment (glass
blowing)
Potential Hazard
Cataracts and flash burns to
cornea
PPE Recommended
Appropriate shaded goggles
Lab coat, closed shoe
Appropriate shaded goggles and face
shield
Work gloves
Arc/TIG welding
Conjunctivitis
Corneal damage
Erythema
Instrument or equipment
Eye damage from foreign
repair/service
objects
Metalworking/Woodworking
shop
Eye damage from foreign
Glassware washing
Skin lacerations
Heavy rubber gloves
Lab coat, closed shoe
Working in industrial lab
with potential injury from
falling equipment or tools,
e.g., Earthquake lab,
Structural Engineering lab,
etc.
Head injury, foot injury
Hard-hat
Steel toe boots
Spill clean-up
See potential hazards for
applicable task section
See applicable individual task section
Changing cryostat knife
Skin lacerations, Infection by
BBP
Steel mesh glove
blade
objects
Safety glasses
No loose clothing or jewelry
Safety glasses
No loose clothing or jewelry
NOTE: Please reference the specific glove manufacturer's selection chart for proper selection of all
gloves based on the specific hazard.
Biological Hazards
Biological hazards are subject to additional regulatory requirements, including recordkeeping. Various types of
records, such as a list of potentially exposed personnel, any procedures involving biohazardous materials or waste,
and other documents should be maintained in this section. If laboratory procedures involve the use of human
derived products covered under the Bloodborne Pathogen Standard, please reference the Exposure Control Plan
here. If your laboratory does not have an Exposure Control Plan, OSEH has a template available on-line.
If applicable please complete
- Laboratory Animals
Copies of procedures for handling laboratory animals, and other documentation pertaining to human and animal
safety and regulatory compliance, should be maintained in this section.
If applicable please complete
Chemical Compatibility Chart
Below is a chart adapted from the CRC Laboratory Handbook, which groups various
chemicals in to 23 groups with examples and incompatible chemical groups. This chart is
by no means complete but it will aid in making decisions about storage. For more complete
information please refer to the MSDS for the specific chemical.
Example
Incompatible Groups
Group #
Name
1 Inorganic Acids
2 Organic acids
3 Caustics
4
Amines and Alkanolamines
5
Halogenated Compounds
6
Alcohols
Glycols
Glycol Ether
Hydrochloric acid
Hydrofluoric acid
Hydrogen chloride
Hydrogen fluoride
Nitric acid
Sulfuric acid
Phosphoric acid
2,3,4,5,6,7,8,10,13,4,16,17,18,19,21,22,23
Acetic acid
Butyric acid
Formic acid
Propionic acid
1,3,4,7,1=4,16,17,18,19,22
Sodium hydroxide
Ammonium hydroxide solution
4,2,6,7,8,13,14,15,16,17,18,20,23
Aminoethylethanolamine
Aniline
Diethanolamine
Diethylamine
Dimethylamine
Ethylenediamine
2-Methyl-5-e t by l pyrid ine
Monoethanolamine
Pyridine
Triethanolamine
Triethylamine
Tri ethy lenetetram i ne
12.5,7,8,13,14,15,16,17,18,23
Ally] chloride
Carbon tetrachloride
Chlorobenzene
Chloroform
Methylene chloride
Monochlorodifluoromethane
1 2,4-Trichlorobenzene
I ,I-Trichloroethane
Trichloroethylene
Tr i c h l orofl u o rom et hane
1,3,4,1 1,14,17
1,4-Butanediol
Butanol (iso, n, sec, tert)
Diethylene glycol
Ethyl alcohol
Ethyl butanol
Ethylene glycol
Furfuryl alcohol
Isoamyl alcohol
Methyl alcohol
Propylene glycol
1,7,14,16,20,23
Example
Incompatible Groups
1,2,3,4,6,8,15,16,17,19,20,23
Group #
7Name
Aldehydes Acetaldehyde
Acrolein
Butyraldehyde
Crotonaldehy
de
8
Ketones
Acetone
9
Saturated Hydrocarbons
Butane
Formaldehyde
1,3,4,7,19,20
Furfural
Acetophenon
Paraformalde
e
20
hyde
Diisobutyl
Cyclohexane
Propionaldeh
ketone
Ethane
yde
Methyl
Heptaneethyl
ketone
Paraffins
10
Aromatic Hydrocarbons
Benzene
1,20
Paraffin wax
Cumene
Pentane
Ethyl
benzene
Petroleum
Naphtha
ether
Butylene
Naphthalene
1-Decene
Toluene
1-Dodecene
Xylene
Gasoline
Ethylene
1,5,20
Mineral Oil
Turpentine
Amyl acetate
1,3,4,19,20
13
Esters
Butyl acetates
11
Olefins
l2 Petroleum Oils
20
Castor oil
14
Dimethyl
Acrylic add
Monomers
sulfate
Acrylonitrile
Polymerizable Esters
15
Ethyl
acetate
Butadiene
Carbolic
acid
Phenols
16
Acrylates
Cresote
Ethylene
Cresols
oxide
Acetone
Phenol
Propylene
cyanohydrin
Alkylene Oxides
17
Cyanohydrins
oxide
Ethylene
cyanohydrin
1,2,3,4,5,6,15,16,19,20,31,23
3,4.7,14,16,19,20
1,2,3.4.6,7,1 4,15,17,18,19,23
1,2,3.4,5,7,16,19,23
Group #
Name
18
Example
Incompatible Groups
Acetonitrile
1,2,3,4,16,23
Nitrites
19
Adiponitrile
Ammonium Hydroxide
Ammonium Gas
1,2,7,8,13,14,15,16,17,20,23
Ammonia
20
Halogens
21
Ethers
22
Phosphorus
23
Acid Anhydrides
Chlorine
3,6,7,8,9,10,11,12,13,14,15,19,21,22
Diethyl Ether
THE
Fluorine
Phosphorus, Elemental
1,14,20
Acetic anhydride
Propionic anhydride
1,3,4,6,7,14,16,17,18,19
1,2,3,20
Incompatible Groups:
Acidic and Alkaline
Spontaneously Combustible and Acidic
Acidic and Flammable
Acidic and Cyanide
Acidic and Reactive Sulfides
Oxidizers and Organics
Nitrates and Acids
Ammoniated Compounds and Hypochlorites and Bleach
Organic Nitrates/Perchlorates and other Oxidizers or Metals
Azides and Metals, Metal Salts, Acids, Strong Oxidizers, Halogens
Perchloric Acid and Metals, Metal Salts, Charcoal, Ethers, Organics, Combustibles, Acids
Your Safer Source for Science Supplies
SUGGESTED SEQUENCE OF
STEPS TO MORE SAFELY ORGANIZE YOUR SCHOOL'S
CHEMICAL STORES AREA
Take an inventory of all the chemicals in your school. You will
never know the extent of your problem until you know
exactly what you have. Record the inventory. You may
want to consider the purchase of the FLINN CHEMICAL
INVENTORY SYSTEM to facilitate this task.
Decide what products you will need for the next year (at
best, two years). Ruthlessly rid yourselves of the
remainder of' the accumulated materials.
Reorganize the remaining products into their compatible chemical families (see our Suggested Chemical Storage Pattern on page 1075). The
actual sequence of compatible families on your shelves is not critical. What is important is to keep the compatible families separate
and to keep the organic and inorganic families as far apart as possible. The Suggested Shelf Storage Pattern shown on pages 1075-1076 is
only one suggested sequence you can use. If shelf space is a problem, you are permitted to place more than one compatible family on a
shelf. Make sure you either have a physical divider or leave a 3" space between each family.
Hundreds of' teachers who have reorganized their shelves, using these patterns, tell us products are easier to find versus the alphabetical
system previously used. When you reorganize, you may need some estimate of the percentage of shelf space each family might oc cupy. If yours
is a "typical" high school, the following profile may be a helpful guide'
Inorganic Families
Families
Percentage of Shelf Space Occupied
Acids
(Inorganic 9)
Store away from all other items. Store
in a dedicated acid cabinet. Store nitric
acid away from all other materials.
Metals, etc.
(Inorganic I)
5
Families
Percentage of Shelf Space Occupied
Sulfides, etc.
(Inorganic 5)
Less than l%
Less than 5%
Halides, Sulfates,
Phosphates,
Acetates, etc.
(Inorganic 2)
Could be 35-40% of available space.
This is usually the largest family.
Chlorates,
5+%
Perchlorates, etc. (Inorganic
6)
Nitrates, etc.
(Inorganic 3)
Approximately 8-10%
Hydroxides,
Oxides, etc.
(Inorganic 4)
Approximately 10%
4
Less than I %
13orates,
Chromates, etc.
(Inorganic 8)
Less than 1%
Sulfur,
Phosphorus, etc.
(Inorganic 10)
Approximately 3%
And Other Materials
And Organic Families
Organic acids (Organic I) will probably occupy about 5+% of your
organic shelf space except for acetic acid which should be stored with
the inorganic acids (hydrochloric, etc.) in a dedicated acid cabinet.
Keep acetic acid away from nitric acid. If your school is "typical," the
remainder of your organic materials may occupy about 15-20% of
your total shelf space. You should store all flammable organics in a
dedicated flammables cabinet.
6
Arsenates, etc.
(Inorganic 7)
There may be. some very large space consumers in 2-kilogram (5-lb.)
containers; i.e., calcium chloride, calcium hydroxide. etc. Certainly
you may wish to extend family storage in a separate location for such
large volumes of large packages.
Congratulations! You have now reorganized your chemical stores facility to:
• store compatible products together
• lock up all poisons
• separate acids into dedicated storage
• record all inventory
- separate Flammables into dedicated storage
rid yourselves of excess materials
YOU NOW HAVE A SAFER FACILITY
2008 Finn Scientific, Inc. All Rights Reserved
Your Safer Source for Science Supplies
SUGGESTED CHEMICAL STORAGE PATTERN
Storage of laboratory chemicals presents an ongoing safety hazard for school science departments. There are many
chemicals that are incompatible with each other. The common method of storing these products in alphabetical order
sometimes results in incompatible neighbors. For example, storing strong oxidizing materials next to organic
chemicals can present a hazard.
A possible solution is to separate chemicals into their organic and inorganic families and then to further divide the
materials into related and compatible families. Below is a list of compatible families. On the next page you will find
this family arrangement pictured as shelf areas in your chemical stores area. The pictured shelf arrangement will
easily enable you to rearrange your inventory into a safer and more compatible environment.
Inorganic
Organic
1. Metals, Hydrides
1. Acids, Amino Acids, Anhydrides, Peracids
2. Acetates, Halides, Iodides, Sulfates, Sulfites,
Thiosulfates, Phosphates, Halogens, Oxalates,
Phthalates, Oleates
2. Alcohols, Glycols, Sugars, Amines, Amides,
Imines, Imides
3. Hydrocarbons, Esters, Aldehydes, Oils
3. Amides, Nitrates (except Ammonium
Nitrate), Nitrites, Azides
4. Hydroxides, Oxides, Silicates, Carbonates, Carbon
4. Ethers, Ketones, Ketenes, Halogenated
Hydrocarbons, Ethylene Oxide
5. Epoxy Compounds, Isocyanates
5. Sulfides, Selenides, Phosphides, Carbides,
6. Peroxides, Hydroperoxides, Azides
Nitrides
7. Sulfides, Polysulfides, Sulfoxides, Nitrites
6. Chlorates, Bromates, Iodates, Chlorites,
Hypochlorites, Perchlorates, Perchloric Acid,
Peroxides, Hydrogen Peroxide
7. Arsenates, Cyanides, Cyanates
8. Phenols, Cresols
9. Dyes, Stains, Indicators
10. Organic miscellaneous
8. Borates, Chromates, Manganates, Permanganates,
Molybdates, Vanadates
9. Acids (except Nitric) (Nitric Acid is isolated
and stored by itself.)
10. Sulfur, Phosphorus, Arsenic, Phosphorus
Pentoxide
11. Inorganic miscellaneous
NOTE: If you store volatile materials (ether, hydrocarbons, etc.) in a refrigerator, the
refrigerator must be explosion-proof. The thermostat switch or light switch in a
standard refrigerator may spark and set off the volatile fumes inside and thus
cause an explosion.
This list is not complete and is intended only to cover the materials possibly found in an average school situation.
This is not the only method of arranging these materials and is only offered as a suggestion.
See the next three pages for detailed inventory and storage steps you might follow to vastly improve the
safety profile of your chemical storage.
0 2008 Finn Scientific, Inc. All Rights Reserved
Your Safer Source for Science Supplies_
SUGGESTED SHELF STORAGE PATTERN-ORGANIC
INORGANIC #7
INORGANIC #10
Arsenates, Cyanides, Cyanates
(Store away from any water.)
Sulfur, Phosphorus, Arsenic.
Phosphorus Pentoxide
INORGANIC #2
INORGANIC #5
Halides, Sulfates, Sulfites,
Thiosulfates, Phosphates, Halogens,
Acetates, Oxalates, Phthalates, Oleates
Sulfides, Selenides, Phosphides,
Carbides, Nitrides
INORGANIC #3
INORGANIC #8
Amides, Nitrates (not Ammonium Nitrate),
Nitrites, Azides
Borates, Chromates, Manganates,
Permanganates, Molybdates, vanadates
(Store Ammonium Nitrate away from
all other substances-ISOLATE IT!)
4..
INORGANIC #6
INORGANIC #1
(Store away from any water.)
(Store Ilammabie solids in Ilarrmables cabinet.)
Chlorates, Bromates, Iodates, Chlorites,
1-lypochlorites, Perchlorates,
Perchloric Acid, Peroxides,
Hydrogen Peroxide
INORGANIC #4
MISCELLANEOUS
Metals & Hydrides
Hydroxides, Oxides, Silicates,
Carbonates, Carbon
If possible
avoid using
the
floor.
Storage Suggestions
1.
Avoid storing chemicals on the floor (even temporarily).
2.
No top shelf chemical storage.
3.
No chemicals stored above eye level.
4.
Shelf' assemblies are firmly secured to walls. Avoid island shelf
assemblies.
5.
Provide anti-roll-off lips on all shelves.
6.
Ideally, shelving assemblies would be of wood construction.
INORGANIC #9
Acids, except Nitric
(Acids are best stored in dedicated cabinets.)
7. Avoid adjustable metal shelf supports and clips. Better to use
fixed, wooden supports.
8.
9.
Store acids in a dedicated acid cabinet. Store nitric acid in
the same cabinet only if isolated from other acids. Store both
inorganic and some organic acids in the acid cabinet.
Store flammables in a dedicated flammables cabinet.
10. Store severe poisons in a dedicated poisons cabinet.
OTHER STORAGE SUGGESTIONS ARE CONTAINED THROUGHOUT
THIS CATALOG/REF'L-RENCE MANUAL.
Store nitric acid away from other acids unless your acid cabinet
provides a separate compartment for nitric acid.
0 2008 Finn Scientific, Inc. All Rights Reserved
SUGGESTED SHELF STORAGE PATTERN-ORGANIC
SUGGESTED SHELF STORAGE PATTERN-ORGANIC
O R G A N I C #8
Phenols, Cresols
ORGANIC #2
Alcohols, Glycols, Sugars, Amines,
Amides, Imines, Imides
( S t o r e Flammables in a dedicated cabinet.)
ORGANIC #6
Peroxides, Azides, Hydroperoxides
ORGANIC #3
Hydrocarbons, Oils, Esters, Aldehydes
(Store nano-nobles in a dedicated cabinet.)
ORGANIC #1
Acids, Amino Acids,
Anhydrides, Peracids
(Store c e r t a i n organic a c i d s in acid cabinet.)
ORGANIC #4
Ethers, Ketones, Ketenes,
Halogenated Hydrocarbons,
Ethylene Oxide
(Store flammahles i n a dedicated cabinet.)
ORGANIC #9
Epoxy Compounds, Isocyanates
Dyes, Stains, Indicators
(Store alcohol-based solutions in Flammables
cabinet,)
ORGANIC #7
MISCELLANEOUS
ORGANIC #5
Sulfides, Polysulfides, etc.
If possible
avoid
using the
floor.
ORGANIC #2
Alcohols, Glycols, etc.
ORGANIC #3
Hydrocarbons, etc.
ORGANIC #4
Ethers. Ketones, etc.
ORGANIC #9
Alcohol-based Indicators, etc
Store
severe
poisons in
locked
Poisons
Cabinet.
Maximize
Storage Space
If shelf space is a problem, you
are permitted to place more
than one compatible chemical
family on a shelf. Make sure
you either have a physical
divider or leave a 3" space
between each family. This will
maximize your tight shelf space
while keeping each compatible
chemical family separate from
one another.
2008 Finn Scientific, Inc. All Rights Reserved
Chemical
Name
1, 10-PHENANTHROLINE
1, 10-PHENANTHROLINE SOLUTION
1,1,1-TRICHLOROETHANE
1,1,2-TRICHLORO-1,2,2-TRIFLUOROETHANE
1,2-PROPANEDIOL
1,4-DIOXANE
1-NAPHTHOL
1-OCTADECANOL
1-OCTANOL
Manufacturer
2,4-DICHLOROPHENOXYACETIC ACID
2,5-DIBROMOANILINE
2,6-DI-TERT-BUTYL-4-METHYLPHENOL
2,6-DICHLOROINDOPHENOL
2-BROMO-2-METHYLPROPANE
2-CHLORO-2-METHYLPROPANE
2-METHOXYETHANOL
2-NAPHTHOL-6-SULFONIC ACID - SODIUM SALT
2-OCTANOL
3,3',5 - TRIIODO- l - THYRONINE
3-2020 3-2020C 3-2020-5 ELECTROSTATIC BLACK
OILBASE OFFSET INK
3-INDOLEBUTYRIC ACID
3M ABRASIVE PRODUCT 211K
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4101 SOLDERING FLUX
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512
L SERIES III L 514 516
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l-ALANINE
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MEXICAN CLAY M1 X22 117 119
MICROBURST 9000 AEROSOL REFILLS ALL
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MILK OF MAGNESIA
MILK POWDER SKIM & WHOLE
MILLON'S REAGENT SOLUTION
MINERAL OIL
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MOBIL 1 SYNTHETIC GEAR LUBRICANT
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MOBIL VACTRA OIL NO 2
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NEODYMIUM CHLORIDE SOLUTION
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NEUTRAL RED
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SODIUM SULFATE ANHYDROUS
SODIUM SULFATE DECAHYDRATE
SODIUM SULFATE SOLUTION
SODIUM SULFIDE
SODIUM SULFIDE SOLUTION
SODIUM SULFITE
SODIUM SULFITE SOLUTION
SODIUM TARTRATE
SODIUM THIOCYANATE
SODIUM THIOSULFATE
SODIUM THIOSULFATE ANHYDROUS
SODIUM THIOSULFATE PENTAHYDRATE
SODIUM THIOSULFATE SOLUTION
SODIUM TUNGSTATE
SOFT SCRUB WITH BLEACH CLEANSER SOFT
SCRUB WITH BLEACH DISINFECTANT CLEANSER
SORBIC ACID
SP 10 CLEAR TRANSPARENT
SP 400 WHITE PEBBLE
SP OVERDRIFT
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SPAREX NO 2
SPERMACETI
SPINACH POWDER
SS 201 TULIP RED
SS 202 SNAPDRAGON RED
SS 203 MARIGOLD ORANGE
SS 204 DAFFODIL YELLOW
SS 205 ZINNIA ORANGE
SS SERIES ALL M2 SP UNDERGLAZES LEAD
CADMIUM
SS SERIES SUN STROKE UNDERGLAZES SUN
STROKE UNDERGLAZES LEAD FREE
SSS EMERGENCY CLEAN UP
ST SERIES 1 STONE TEXTURE GLAZES LEAD FREE
ST SERIES 2 STONE TEXTURE GLAZES COPPER
STA FLO CONCENTRATED LIQUID STARCH
STAINLESS STEEL POLISH 2040
STANNIC CHLORIDE
STANNIC CHLORIDE SOLUTION
STANNIC OXIDE
STANNOUS CHLORIDE
STANNOUS CHLORIDE SOLUTION
STARCH
STARCH SOLUTION
STARCH SPRAY
STARCH-MALONIC ACID-MANGANESE SULFATE
SOLUTION
STARCH-MALONIC ACID-MANGANOUS SULFATE
SOLUTION
STEARIC ACID
STEEL
STERIPHENE II BRAND DISINFECTANT
DEODORANT
STIHL 2 CYCLE UNIVERSAL ENGINE OIL
STREPTOMYCIN SULFATE
CO
KROHN TECHNICAL
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PRODUCTS
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TRIPLE S
Custodial
STANDARDIZED
Maintenance
SANITATION SYSTEMS
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STRONTIUM ACETATE
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STRONTIUM CHLORIDE
STRONTIUM CHLORIDE SOLUTION
STRONTIUM HYDROXIDE
STRONTIUM HYDROXIDE SOLUTION
STRONTIUM NITRATE
STRONTIUM NITRATE SOLUTION
STYRENE MONOMER
SUCCINIC ACID
SUCROSE
SUCROSE SOLUTIONS
SUDAN BLACK B
SUDAN III
SUDAN III SOLUTION
SUDAN IV
SUDAN IV SOLUTION
SULFAMIC ACID
SULFANILAMIDE
SULFANILAMIDE SOLUTION
SULFANILIC ACID
SULFOSALICYLIC ACID SOLUTION
SULFUR
SULFUR HEXAFLUORIDE
SULFURIC ACID
SULFURIC ACID SOLUTION
SUNNYSIDE PAINT THINNER PLASTIC CONTAINER
701
SUNSHINE CLOTH
SUNSWEPT
SUPER DOUGH RED
SUPER DOUGH WHITE
SUPER DOUGH YELLOW
SUPER DUPER POLYMER GEL
SUPER DUTY MOUNTING CEMENT
SUPER SCULPEY
SUPER SORB
TALC
TALLOW
TANNIC ACID
TANNIC ACID SOLUTION
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TASKI PROFI OIL AND GREASE REMOVER
TASKI WIWAX
TB CIDE QUAT
TERRA COTTA CLAY 77M & D
tert-BUTYL ALCOHOL
TESTOSTERONE
TESTOSTERONE PROPIONATE
TETRACYCLINE HYDROCHLORIDE
TETRAHYDROFURAN
TETRAMETHYL-P-PHENYLENEDIAMINE
DIHYDROCHLORIDE
THERMIT BLACK
THERMIT IGNITING STICK
THIAMINE HYDROCHLORIDE
THIOACETAMIDE
THIOACETAMIDE SOLUTION
THIONIN
THIONIN SOLUTION
THIOUREA
THYMOL
THYMOL BLUE
THYMOL BLUE INDICATOR SOLUTION
THYMOLPHTHALEIN
THYMOLPHTHALEIN INDICATOR SOLUTION
THYROXINE SODIUM SALT
TILE CLAD COMPONENT A (REGISTERED
TRADEMARK)
TILE CLAD COMPONENT B (REGISTERED
TRADEMARK)
TIN
TITANIUM DIOXIDE
TOLUENE
TOLUIDINE BLUE O
TOLUIDINE BLUE O STAINING SOLUTION
TOLUIDINE BLUE O STOCK SOLUTION
TOMATO PASTE
TOP SPIN SPIN BONNET CLEANER
TOUGH DUTY
TOXI DIP A-3 SOLUTION
TOXI LAB DEVELOPING SOLUTION
TOXI TUBES A
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TRICAINE METHANESULFONATE
TRICHLOROACETIC ACID
TRICHLOROETHYLENE
TRICKY FUN STRING
TRIETHANOLAMINE
TRIPHENYL TETRAZOLIUM CHLORIDE
TRIS-(HYDROXYMETHYL) AMINOMETHANE
TRYPSIN
TRYPTIC SOY AGAR PREPARED MICROBIOLOGICAL
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UHU STIC GLUE STICK
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URANYL FORMATE MONO HYDRATE
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INDUSTRIES INC
URANYL NITRATE
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V SERIES 1 M1 LEAD FREE VELVETS
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V SERIES 2 M1 LEAD FREE VELVETS SILICA
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V SERIES 4 M2 LEAD FREE VELVETS COBALT
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VASELINE LOTION ALL VARIANTS
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VEGETABLE (FOOD) DYES
VEGETABLE OIL CONCENTRATE
VINEGAR
VINEGAR
VINEGAR ALL TYPES
VINEGAR ALL VARIETIES
VITRIFIED BONDED ABRASIVES
VOBAN VOMITUS ABSORBENT
WASP AND HORNET KILLER
WATER
WAX RESIST
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WD 40 AEROSOL
WD 40 COMPANY
WD 40 BULK LIQUID
WD 40 COMPANY
WEL COTE PLASTER OF PARIS
WHITE ART CLAY 25M & D
WINKLER'S SOLUTION #1
WINKLER'S SOLUTION #2
WINSOR & NEWTON WINTON OIL COLOURS NOS
WIWAX CLEANING & MAINTENANCE EMULSION
WOODFORCE OMU 50 FINISH
WOODFORCE STRATEGIC CLEANER
WOODS METAL
WORKABLE FIXATIVE
WRIGHT'S STAIN
WRIGHT'S STAINING SOLUTION
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XYLENES
YEAST
YEAST EXTRACT
YELLOW BEESWAX-WHITE BEESWAX
YTTRIUM OXIDE
ZAM CROCUS 1 LB TUBE
ZENKER'S FLUID
ZEOLITE
ZINC
ZINC ACETATE
ZINC CARBONATE BASIC
ZINC CHLORIDE
ZINC CHLORIDE SOLUTION
ZINC NITRATE
ZINC NITRATE SOLUTION
ZINC OXIDE
ZINC STEARATE
ZINC SULFATE
ZINC SULFATE SOLUTION
ZINC SULFIDE
ZINC-MERCURY AMALGAM
ZIRCONYL CHLORIDE SOLUTION
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• Part Number:
• Part Title:
• Subpart:
• Subpart Title:
• Standard Number:
• Title:
1910
Occupational Safety and Health Standards
Z
Toxic and Hazardous Substances
1910.1450 App A
National Research Council Recommendations Concerning Chemical Hygiene in Laboratories (NonMandatory)
Table of Contents
Foreword
Corresponding Sections of the Standard and This Appendix
A. General Principles
1. Minimize all Chemical Exposures
2. Avoid Underestimation of Risk
3. Provide Adequate Ventilation
4. Institute a Chemical Hygiene Program
5. Observe the PELs and TLVs
B. Responsibilities
1. Chief Executive Officer
2. Supervisor of Administrative Unit
3. Chemical Hygiene Officer
4. Laboratory Supervisor
5. Project Director
6. Laboratory Worker
C. The Laboratory Facility
1. Design
2. Maintenance
3. Usage
4. Ventilation
D. Components of the Chemical Hygiene Plan
1. Basic Rules and Procedures
2. Chemical Procurement, Distribution, and Storage
3. Environmental Monitoring
4. Housekeeping, Maintenance and Inspections
5. Medical Program
6. Personal Protective Apparel and Equipment
7. Records
8. Signs and Labels
9. Spills and Accidents
10. Training and Information
11. Waste Disposal
E. General Procedures for Working With Chemicals
1. General Rules for all Laboratory Work with Chemicals
2. Allergens and Embryotoxins
3. Chemicals of Moderate Chronic or High Acute Toxicity
4. Chemicals of High Chronic Toxicity
5. Animal Work with Chemicals of High Chronic Toxicity
F. Safety Recommendations
G. Material Safety Data Sheets
Foreword
As guidance for each employer's development of an appropriate laboratory Chemical Hygiene Plan, the following non-mandatory
recommendations are provided. They were extracted form "Prudent Practices" for Handling Hazardous Chemicals in Laboratories" (referred
to below as "Prudent Practices"), which was published in 1981 by the National Research Council and is available from the National
Academy Press, 2101 Constitution Ave., NW,. Washington DC 20418.
"Prudent Practices" is cited because of its wide distribution and acceptance and because of its preparation by members of the laboratory
community through the sponsorship of the National Research Council. However, none of the recommendations given here will modify any
requirements of the laboratory standard. This Appendix merely presents pertinent recommendations from "Prudent Practices", organized
into a form convenient for quick reference during operation of a laboratory facility and during development and application of a Chemical
Hygiene Plan. Users of this appendix should consult "Prudent Practices" for a more extended presentation and justification for each
recommendation.
"Prudent Practices" deal with both safety and chemical hazards while the laboratory standard is concerned primarily with chemical hazards.
Therefore, only those recommendations directed primarily toward control of toxic exposures are cited in this appendix, with the term
"chemical Hygiene" being substituted for the word "safety". However, since conditions producing or threatening physical injury often pose
toxic risks as well, page references concerning major categories of safety hazards in the laboratory are given in section F.
The recommendations from "Prudent Practices" have been paraphrased, combined, or otherwise reorganized, and headings have been
added. However, their sense has not been changed.
Corresponding Sections of the Standard and this Appendix
The following table is given for the convenience of those who are developing a Chemical Hygiene Plan which will satisfy the requirements
of paragraph (e) of the standard. It indicates those sections of this appendix which are most pertinent to each of the sections of paragraph
(e) and related paragraphs.
___________________________________________________________________
|
| Relevant
Paragraph and topic in laboratory | appendix
standard
| section
_____________________________________________________|_____________
|
(e)(3)(i) Standard operating procedures for handling | C, D, E
toxic chemicals.
|
(e)(3)(ii) Criteria to be used for implementation of | D
measures to reduce exposures. |
(e)(3)(iii) Fume hood performance | C4b
(e)(3)(iv) Employee information and training
| D10, D9
(including emergency procedures). |
(e)(3)(v) Requirements for prior approval of
| E2b, E4b
laboratory activities. |
(e)(3)(vi) Medical consultation and medical
| D5, E4f
examinations. |
(e)(3)(vii) Chemical hygiene responsibilities. | B
(e)(3)(viii) Special precautions for work with | E2, E3, E4
particularly hazardous substances.
|
_____________________________________________________|_____________
In this appendix, those recommendations directed primarily at administrators and supervisors are given in sections A-D. Those
recommendations of primary concern to employees who are actually handling laboratory chemicals are given in section E. (Reference to
page numbers in "Prudent Practices" are given in parentheses.)
A. General Principles for Work with Laboratory Chemicals
In addition to the more detailed recommendations listed below in sections B-E, "Prudent Practices" expresses certain general principles,
including the following:
1. It is prudent to minimize all chemical exposures. Because few laboratory chemicals are without hazards, general precautions for
handling all laboratory chemicals should be adopted, rather than specific guidelines for particular chemicals (2,10). Skin contact with
chemicals should be avoided as a cardinal rule (198).
2. Avoid underestimation of risk. Even for substances of no known significant hazard, exposure should be minimized; for work with
substances which present special hazards, special precautions should be taken (10, 37, 38). One should assume that any mixture will be
more toxic than its most toxic component (30, 103) and that all substances of unknown toxicity are toxic (3, 34).
3. Provide adequate ventilation. The best way to prevent exposure to airborne substances is to prevent their escape into the working
atmosphere by use of hoods and other ventilation devices (32, 198).
4. Institute a chemical hygiene program. A mandatory chemical hygiene program designed to minimize exposures is needed; it should be a
regular, continuing effort, not merely a standby or short-term activity (6,11). Its recommendations should be followed in academic
teaching laboratories as well as by full-time laboratory workers (13).
5. Observe the PELs, TLVs. The Permissible Exposure Limits of OSHA and the Threshold Limit Values of the American Conference of
Governmental Industrial Hygienists should not be exceeded (13).
B. Chemical Hygiene Responsibilities
Responsibility for chemical hygiene rests at all levels (6, 11, 21) including the:
1. Chief executive officer, who has ultimate responsibility for chemical hygiene within the institution and must, with other administrators,
provide continuing support for institutional chemical hygiene (7, 11).
2. Supervisor of the department or other administrative unit, who is responsible for chemical hygiene in that unit (7).
3. chemical hygiene officer(s), whose appointment is essential (7) and who must:
(a) Work with administrators and other employees to develop and implement appropriate chemical hygiene policies and practices (7);
(b) Monitor procurement, use, and disposal of chemicals used in the lab (8);
(c) See that appropriate audits are maintained (8);
(d) Help project directors develop precautions and adequate facilities (10);
(e) Know the current legal requirements concerning regulated substances (50); and
(f) Seek ways to improve the chemical hygiene program (8, 11).
4. Laboratory supervisor, who has overall responsibility for chemical hygiene in the laboratory (21) including responsibility to:
(a) Ensure that workers know and follow the chemical hygiene rules, that protective equipment is available and in working order, and that
appropriate training has been provided (21, 22);
(b) Provide regular, formal chemical hygiene and housekeeping inspections including routine inspections of emergency equipment (21,
171);
(c) Know the current legal requirements concerning regulated substances (50, 231);
(d) Determine the required levels of protective apparel and equipment (156, 160, 162); and
(e) Ensure that facilities and training for use of any material being ordered are adequate (215).
5. Project director or director of other specific operation, who has primary responsibility for chemical hygiene procedures for that operation
(7).
6. Laboratory worker, who is responsible for:
(a) Planning and conducting each operation in accordance with the institutional chemical hygiene procedures (7, 21, 22, 230); and
(b) Developing good personal chemical hygiene habits (22).
C. The Laboratory Facility
1. Design. The laboratory facility should have:
(a) An appropriate general ventilation system (see C4 below) with air intakes and exhausts located so as to avoid intake of contaminated
air (194);
(b) Adequate, well-ventilated stockrooms/storerooms (218, 219).
(c) Laboratory hoods and sinks (12, 162);
(d) Other safety equipment including eyewash fountains and drench showers (162, 169); and
(e) Arrangements for waste disposal (12, 240).
2. Maintenance. Chemical-hygiene-related equipment (hoods, incinerator, etc.) should undergo continual appraisal and be modified if
inadequate (11, 12).
3. Usage. The work conducted (10) and its scale (12) must be appropriate to the physical facilities available and, especially, to the quality
of ventilation (13).
4. Ventilation - (a) General laboratory ventilation. This system should: Provide a source of air for breathing and for input to local ventilation
devices (199); it should not be relied on for protection from toxic substances released into the laboratory (198); ensure that laboratory air
is continually replaced, preventing increase of air concentrations of toxic substances during the working day (194); direct air flow into the
laboratory from non-laboratory areas and out to the exterior of the building (194).
(b) Hoods. A laboratory hood with 2.5 linear feet of hood space per person should be provided for every 2 workers if they spend most of
their time working with chemicals (199); each hood should have a continuous monitoring device to allow convenient confirmation of
adequate hood performance before use (200, 209). If this is not possible, work with substances of unknown toxicity should be avoided
(13) or other types of local ventilation devices should be provided (199). See pp. 201-206 for a discussion of hood design, construction,
and evaluation.
(c) Other local ventilation devices. Ventilated storage cabinets, canopy hoods, snorkels, etc. should be provided as needed (199). Each
canopy hood and snorkel should have a separate exhaust duct (207).
(d) Special ventilation areas. Exhaust air from glove boxes and isolation rooms should be passed through scrubbers or other treatment
before release into the regular exhaust system (208). Cold rooms and warm rooms should have provisions for rapid escape and for escape
in the event of electrical failure (209).
(e) Modifications. Any alteration of the ventilation system should be made only if thorough testing indicates that worker protection from
airborne toxic substances will continue to be adequate (12, 193, 204).
(f) Performance. Rate: 4-12 room air changes/hour is normally adequate general ventilation if local exhaust systems such as hoods are
used as the primary method of control (194).
(g) Quality. General air flow should not be turbulent and should be relatively uniform throughout the laboratory, with no high velocity or
static areas (194, 195); airflow into and within the hood should not be excessively turbulent (200); hood face velocity should be adequate
(typically 60-100 lfm) (200, 204).
(h) Evaluation. Quality and quantity of ventilation should be evaluated on installation (202), regularly monitored (at least every 3 months)
(6, 12, 14, 195), and reevaluated whenever a change in local ventilation devices is made (12, 195, 207). See pp 195-198 for methods of
evaluation and for calculation of estimated airborne contaminant concentrations.
D. Components of the Chemical Hygiene Plan
1. Basic Rules and Procedures (Recommendations for these are given in section E, below)
2. Chemical Procurement, Distribution, and Storage
(a) Procurement. Before a substance is received, information on proper handling, storage, and disposal should be known to those who will
be involved (215, 216). No container should be accepted without an adequate identifying label (216). Preferably, all substances should be
received in a central location (216).
(b) Stockrooms/storerooms. Toxic substances should be segregated in a well-identified area with local exhaust ventilation (221). Chemicals
which are highly toxic (227) or other chemicals whose containers have been opened should be in unbreakable secondary containers (219).
Stored chemicals should be examined periodically (at least annually) for replacement, deterioration, and container integrity (218-19).
Stockrooms/storerooms should not be used as preparation or repackaging areas, should be open during normal working hours, and should
be controlled by one person (219).
(c) Distribution. When chemicals are hand carried, the container should be placed in an outside container or bucket. Freight-only elevators
should be used if possible (223).
(d) Laboratory storage. Amounts permitted should be as small as practical. Storage on bench tops and in hoods is inadvisable. Exposure to
heat or direct sunlight should be avoided. Periodic inventories should be conducted, with unneeded items being discarded or returned to
the storeroom/stockroom (225-6, 229).
3. Environmental Monitoring
Regular instrumental monitoring of airborne concentrations is not usually justified or practical in laboratories but may be appropriate when
testing or redesigning hoods or other ventilation devices (12) or when a highly toxic substance is stored or used regularly (e.g., 3
times/week) (13).
4. Housekeeping, Maintenance, and Inspections
(a) Cleaning. Floors should be cleaned regularly (24).
(b) Inspections. Formal housekeeping and chemical hygiene inspections should be held at least quarterly (6, 21) for units which have
frequent personnel changes and semiannually for others; informal inspections should be continual (21).
(c) Maintenance. Eye wash fountains should be inspected at intervals of not less than 3 months (6). Respirators for routine use should be
inspected periodically by the laboratory supervisor (169). Other safety equipment should be inspected regularly. (e.g., every 3-6 months)
(6, 24, 171). Procedures to prevent restarting of out-of-service equipment should be established (25).
(d) Passageways. Stairways and hallways should not be used as storage areas (24). Access to exits, emergency equipment, and utility
controls should never be blocked (24).
5. Medical Program
(a) Compliance with regulations. Regular medical surveillance should be established to the extent required by regulations (12).
(b) Routine surveillance. Anyone whose work involves regular and frequent handling of toxicologically significant quantities of a chemical
should consult a qualified physician to determine on an individual basis whether a regular schedule of medical surveillance is desirable (11,
50).
(c) First aid. Personnel trained in first aid should be available during working hours and an emergency room with medical personnel should
be nearby (173). See pp. 176-178 for description of some emergency first aid procedures.
6. Protective Apparel and Equipment
These should include for each laboratory:
(a) Protective apparel compatible with the required degree of protection for substances being handled (158-161);
(b) An easily accessible drench-type safety shower (162, 169);
(c) An eyewash fountain (162)
(d) A fire extinguisher (162-164);
(e) Respiratory protection (164-9), fire alarm and telephone for emergency use (162) should be available nearby; and
(f) Other items designated by the laboratory supervisor (156, 160).
7. Records
(a) Accident records should be written and retained (174).
(b) Chemical Hygiene Plan records should document that the facilities and precautions were compatible with current knowledge and
regulations (7).
(c) Inventory and usage records for high-risk substances should be kept as specified in sections E3e below.
(d) Medical records should be retained by the institution in accordance with the requirements of state and federal regulations (12).
8. Signs and Labels
Prominent signs and labels of the following types should be posted:
(a) Emergency telephone numbers of emergency personnel/facilities, supervisors, and laboratory workers (28);
(b) Identity labels, showing contents of containers (including waste receptacles) and associated hazards (27, 48);
(c) Location signs for safety showers, eyewash stations, other safety and first aid equipment, exits (27) and areas where food and
beverage consumption and storage are permitted (24); and
(d) Warnings at areas or equipment where special or unusual hazards exist (27).
9. Spills and Accidents
(a) A written emergency plan should be established and communicated to all personnel; it should include procedures for ventilation failure
(200), evacuation, medical care, reporting, and drills (172).
(b) There should be an alarm system to alert people in all parts of the facility including isolation areas such as cold rooms (172).
(c) A spill control policy should be developed and should include consideration of prevention, containment, cleanup, and reporting (175).
(d) All accidents or near accidents should be carefully analyzed with the results distributed to all who might benefit (8, 28).
10. Information and Training Program
(a) Aim: To assure that all individuals at risk are adequately informed about the work in the laboratory, its risks, and what to do if an
accident occurs (5, 15).
(b) Emergency and Personal Protection Training: Every laboratory worker should know the location and proper use of available protective
apparel and equipment (154, 169).
Some of the full-time personnel of the laboratory should be trained in the proper use of emergency equipment and procedures (6).
Such training as well as first aid instruction should be available to (154) and encouraged for (176) everyone who might need it.
(c) Receiving and stockroom/storeroom personnel should know about hazards, handling equipment, protective apparel, and relevant
regulations (217).
(d) Frequency of Training: The training and education program should be a regular, continuing activity - not simply an annual presentation
(15).
(e) Literature/Consultation: Literature and consulting advice concerning chemical hygiene should be readily available to laboratory
personnel, who should be encouraged to use these information resources (14).
11. Waste Disposal Program.
(a) Aim: To assure that minimal harm to people, other organisms, and the environment will result from the disposal of waste laboratory
chemicals (5).
(b) Content (14, 232, 233, 240): The waste disposal program should specify how waste is to be collected, segregated, stored, and
transported and include consideration of what materials can be incinerated. Transport from the institution must be in accordance with DOT
regulations (244).
(c) Discarding Chemical Stocks: Unlabeled containers of chemicals and solutions should undergo prompt disposal; if partially used, they
should not be opened (24, 27).
Before a worker's employment in the laboratory ends, chemicals for which that person was responsible should be discarded or returned to
storage (226).
(d) Frequency of Disposal: Waste should be removed from laboratories to a central waste storage area at least once per week and from
the central waste storage area at regular intervals (14).
(e) Method of Disposal: Incineration in an environmentally acceptable manner is the most practical disposal method for combustible
laboratory waste (14, 238, 241).
Indiscriminate disposal by pouring waste chemicals down the drain (14, 231, 242) or adding them to mixed refuse for landfill burial is
unacceptable (14).
Hoods should not be used as a means of disposal for volatile chemicals (40, 200).
Disposal by recycling (233, 243) or chemical decontamination (40, 230) should be used when possible.
E. Basic Rules and Procedures for Working with Chemicals
The Chemical Hygiene Plan should require that laboratory workers know and follow its rules and procedures. In addition to the procedures
of the sub programs mentioned above, these should include the rules listed below.
1. General Rules
The following should be used for essentially all laboratory work with chemicals:
(a) Accidents and spills - Eye Contact: Promptly flush eyes with water for a prolonged period (15 minutes) and seek medical attention (33,
172).
Ingestion: This is one route of entry for which treatment depends on the type and amount of chemical involved. Seek medical attention
immediately.
Skin Contact: Promptly flush the affected area with water (33, 172, 178) and remove any contaminated clothing (172, 178). If symptoms
persist after washing, seek medical attention (33).
Clean-up. Promptly clean up spills, using appropriate protective apparel and equipment and proper disposal (24, 33). See pp. 233-237 for
specific clean-up recommendations.
(b) Avoidance of "routine" exposure: Develop and encourage safe habits (23); avoid unnecessary exposure to chemicals by any route (23);
Do not smell or taste chemicals (32). Vent apparatus which may discharge toxic chemicals (vacuum pumps, distillation columns, etc.) into
local exhaust devices (199).
Inspect gloves (157) and test glove boxes (208) before use.
Do not allow release of toxic substances in cold rooms and warm rooms, since these have contained recirculated atmospheres (209).
(c) Choice of chemicals: Use only those chemicals for which the quality of the available ventilation system is appropriate (13).
(d) Eating, smoking, etc.: Avoid eating, drinking, smoking, gum chewing, or application of cosmetics in areas where laboratory chemicals
are present (22, 24, 32, 40); wash hands before conducting these activities (23, 24).
Avoid storage, handling, or consumption of food or beverages in storage areas, refrigerators, glassware or utensils which are also used for
laboratory operations (23, 24, 226).
(e) Equipment and glassware: Handle and store laboratory glassware with care to avoid damage; do not use damaged glassware (25). Use
extra care with Dewar flasks and other evacuated glass apparatus; shield or wrap them to contain chemicals and fragments should
implosion occur (25). Use equipment only for its designed purpose (23, 26).
(f) Exiting: Wash areas of exposed skin well before leaving the laboratory (23).
(g) Horseplay: Avoid practical jokes or other behavior which might confuse, startle or distract another worker (23).
(h) Mouth suction: Do not use mouth suction for pipeting or starting a siphon (23, 32).
(i) Personal apparel: Confine long hair and loose clothing (23, 158). Wear shoes at all times in the laboratory but do not wear sandals,
perforated shoes, or sneakers (158).
(j) Personal housekeeping: Keep the work area clean and uncluttered, with chemicals and equipment being properly labeled and stored;
clean up the work area on completion of an operation or at the end of each day (24).
(k) Personal protection: Assure that appropriate eye protection (154-156) is worn by all persons, including visitors, where chemicals are
stored or handled (22, 23, 33, 154).
Wear appropriate gloves when the potential for contact with toxic materials exists (157); inspect the gloves before each use, wash them
before removal, and replace them periodically (157). (A table of resistance to chemicals of common glove materials is given p. 159).
Use appropriate (164-168) respiratory equipment when air contaminant concentrations are not sufficiently restricted by engineering
controls (164-5), inspecting the respirator before use (169).
Use any other protective and emergency apparel and equipment as appropriate (22, 157-162).
Avoid use of contact lenses in the laboratory unless necessary; if they are used, inform supervisor so special precautions can be taken
(155).
Remove laboratory coats immediately on significant contamination (161).
(l) Planning: Seek information and advice about hazards (7), plan appropriate protective procedures, and plan positioning of equipment
before beginning any new operation (22, 23).
(m) Unattended operations: Leave lights on, place an appropriate sign on the door, and provide for containment of toxic substances in the
event of failure of a utility service (such as cooling water) to an unattended operation (27, 128).
(n) Use of hood: Use the hood for operations which might result in release of toxic chemical vapors or dust (198-9).
As a rule of thumb, use a hood or other local ventilation device when working with any appreciably volatile substance with a TLV of less
than 50 ppm (13).
Confirm adequate hood performance before use; keep hood closed at all times except when adjustments within the hood are being made
(200); keep materials stored in hoods to a minimum and do not allow them to block vents or air flow (200).
Leave the hood "on" when it is not in active use if toxic substances are stored in it or if it is uncertain whether adequate general laboratory
ventilation will be maintained when it is "off" (200).
(o) Vigilance: Be alert to unsafe conditions and see that they are corrected when detected (22).
(p) Waste disposal: Assure that the plan for each laboratory operation includes plans and training for waste disposal (230).
Deposit chemical waste in appropriately labeled receptacles and follow all other waste disposal procedures of the Chemical Hygiene Plan
(22, 24).
Do not discharge to the sewer concentrated acids or bases (231); highly toxic, malodorous, or lachrymatory substances (231); or any
substances which might interfere with the biological activity of waste water treatment plants, create fire or explosion hazards, cause
structural damage or obstruct flow (242).
(q) Working alone: Avoid working alone in a building; do not work alone in a laboratory if the procedures being conducted are hazardous
(28).
2. Working with Allergens and Embryotoxins
(a) Allergens (examples: diazomethane, isocyanates, bichromates): Wear suitable gloves to prevent hand contact with allergens or
substances of unknown allergenic activity (35).
(b) Embryotoxins (34-5) (examples: organomercurials, lead compounds, formamide): If you are a woman of childbearing age, handle
these substances only in a hood whose satisfactory performance has been confirmed, using appropriate protective apparel (especially
gloves) to prevent skin contact.
Review each use of these materials with the research supervisor and review continuing uses annually or whenever a procedural change is
made.
Store these substances, properly labeled, in an adequately ventilated area in an unbreakable secondary container.
Notify supervisors of all incidents of exposure or spills; consult a qualified physician when appropriate.
3. Work with Chemicals of Moderate Chronic or High Acute Toxicity
Examples: diisopropylfluorophosphate (41), hydrofluoric acid (43), hydrogen cyanide (45).
Supplemental rules to be followed in addition to those mentioned above (Procedure B of "Prudent Practices", pp. 39-41):
(a) Aim: To minimize exposure to these toxic substances by any route using all reasonable precautions (39).
(b) Applicability: These precautions are appropriate for substances with moderate chronic or high acute toxicity used in significant
quantities (39).
(c) Location: Use and store these substances only in areas of restricted access with special warning signs (40, 229).
Always use a hood (previously evaluated to confirm adequate performance with a face velocity of at least 60 linear feet per minute) (40)
or other containment device for procedures which may result in the generation of aerosols or vapors containing the substance (39); trap
released vapors to revent their discharge with the hood exhaust (40).
(d) Personal protection: Always avoid skin contact by use of gloves and long sleeves (and other protective apparel as appropriate) (39).
Always wash hands and arms immediately after working with these materials (40).
(e) Records: Maintain records of the amounts of these materials on hand, amounts used, and the names of the workers involved (40,
229).
(f) Prevention of spills and accidents: Be prepared for accidents and spills (41).
Assure that at least 2 people are present at all times if a compound in use is highly toxic or of unknown toxicity (39).
Store breakable containers of these substances in chemically resistant trays; also work and mount apparatus above such trays or cover
work and storage surfaces with removable, absorbent, plastic backed paper (40).
If a major spill occurs outside the hood, evacuate the area; assure that cleanup personnel wear suitable protective apparel and equipment
(41).
(g) Waste: Thoroughly decontaminate or incinerate contaminated clothing or shoes (41). If possible, chemically decontaminate by
chemical conversion (40).
Store contaminated waste in closed, suitably labeled, impervious containers (for liquids, in glass or plastic bottles half-filled with
vermiculite) (40).
4. Work with Chemicals of High Chronic Toxicity
(Examples: dimethylmercury and nickel carbonyl (48), benzo-a-pyrene (51), N-nitrosodiethylamine (54), other human carcinogens or
substances with high carcinogenic potency in animals (38).)
Further supplemental rules to be followed, in addition to all these mentioned above, for work with substances of known high chronic
toxicity (in quantities above a few milligrams to a few grams, depending on the substance) (47). (Procedure A of "Prudent Practices" pp.
47-50).
(a) Access: Conduct all transfers and work with these substances in a "controlled area": a restricted access hood, glove box, or portion of a
lab, designated for use of highly toxic substances, for which all people with access are aware of the substances being used and necessary
precautions (48).
(b) Approvals: Prepare a plan for use and disposal of these materials and obtain the approval of the laboratory supervisor (48).
(c) Non-contamination/Decontamination: Protect vacuum pumps against contamination by scrubbers or HEPA filters and vent them into
the hood (49). Decontaminate vacuum pumps or other contaminated equipment, including glassware, in the hood before removing them
from the controlled area (49, 50).
Decontaminate the controlled area before normal work is resumed there (50).
(d) Exiting: On leaving a controlled area, remove any protective apparel (placing it in an appropriate, labeled container) and thoroughly
wash hands, forearms, face, and neck (49).
(e) Housekeeping: Use a wet mop or a vacuum cleaner equipped with a HEPA filter instead of dry sweeping if the toxic substance was a
dry powder (50).
(f) Medical surveillance: If using toxicologically significant quantities of such a substance on a regular basis (e.g., 3 times per week),
consult a qualified physician concerning desirability of regular medical surveillance (50).
(g) Records: Keep accurate records of the amounts of these substances stored (229) and used, the dates of use, and names of users (48).
(h) Signs and labels: Assure that the controlled area is conspicuously marked with warning and restricted access signs (49) and that all
containers of these substances are appropriately labeled with identity and warning labels (48).
(i) Spills: Assure that contingency plans, equipment, and materials to minimize exposures of people and property in case of accident are
available (233-4).
(j) Storage: Store containers of these chemicals only in a ventilated, limited access (48, 227, 229) area in appropriately labeled,
unbreakable, chemically resistant, secondary containers (48, 229).
(k) Glove boxes: For a negative pressure glove box, ventilation rate must be at least 2 volume changes/hour and pressure at least 0.5
inches of water (48). For a positive pressure glove box, thoroughly check for leaks before each use (49). In either case, trap the exit gases
or filter them through a HEPA filter and then release them into the hood (49).
(l) Waste: Use chemical decontamination whenever possible; ensure that containers of contaminated waste (including washings from
contaminated flasks) are transferred from the controlled area in a secondary container under the supervision of authorized personnel (49,
50, 233).
5. Animal Work with Chemicals of High Chronic Toxicity
(a) Access: For large scale studies, special facilities with restricted access are preferable (56).
(b) Administration of the toxic substance: When possible, administer the substance by injection or gavage instead of in the diet. If
administration is in the diet, use a caging system under negative pressure or under laminar air flow directed toward HEPA filters (56).
(c) Aerosol suppression: Devise procedures which minimize formation and dispersal of contaminated aerosols, including those from food,
urine, and feces (e.g., use HEPA filtered vacuum equipment for cleaning, moisten contaminated bedding before removal from the cage,
mix diets in closed containers in a hood) (55, 56).
(d) Personal protection: When working in the animal room, wear plastic or rubber gloves, fully buttoned laboratory coat or jumpsuit and, if
needed because of incomplete suppression of aerosols, other apparel and equipment (shoe and head coverings, respirator) (56).
(e) Waste disposal: Dispose of contaminated animal tissues and excreta by incineration if the available incinerator can convert the
contaminant to non-toxic products (238); otherwise, package the waste appropriately for burial in an EPA-approved site (239).
F. Safety Recommendations
The above recommendations from "Prudent Practices" do not include those which are directed primarily toward prevention of physical
injury rather than toxic exposure. However, failure of precautions against injury will often have the secondary effect of causing toxic
exposures. Therefore, we list below page references for recommendations concerning some of the major categories of safety hazards
which also have implications for chemical hygiene:
1.
2.
3.
4.
5.
Corrosive agents: (35-6)
Electrically powered laboratory apparatus: (179-92)
Fires, explosions: (26, 57-74, 162-64, 174-5, 219-20, 226-7)
Low temperature procedures: (26, 88)
Pressurized and vacuum operations (including use of compressed gas cylinders): (27, 75-101)
G. Material Safety Data Sheets
Material safety data sheets are presented in "Prudent Practices" for the chemicals listed below. (Asterisks denote that comprehensive
material safety data sheets are provided).
* Acetyl peroxide (105)
* Acrolein (106)
* Acrylonitrile
Ammonia (anhydrous)(91)
* Aniline (109)
* Benzene (110)
* Benzo[a]pyrene (112)
* Bis(chloromethyl) ether (113)
Boron trichloride (91)
Boron trifluoride (92)
Bromine (114)
* Tert-butyl hydroperoxide (148)
* Carbon disulfide (116)
Carbon monoxide (92)
* Carbon tetrachloride (118)
* Chlorine (119)
Chlorine trifluoride (94)
* Chloroform (121)
Chloromethane (93)
* Diethyl ether (122)
Diisopropyl fluorophosphate (41)
* Dimethylformamide (123)
* Dimethyl sulfate (125)
* Dioxane (126)
* Ethylene dibromide (128)
* Fluorine (95)
* Formaldehyde (130)
* Hydrazine and salts (132)
Hydrofluoric acid (43)
Hydrogen bromide (98)
Hydrogen chloride (98)
* Hydrogen cyanide (133)
* Hydrogen sulfide (135)
Mercury and compounds (52)
* Methanol (137)
* Morpholine (138)
* Nickel carbonyl (99)
* Nitrobenzene (139)
Nitrogen dioxide (100)
N-nitrosodiethylamine (54)
* Peracetic acid (141)
* Phenol (142)
* Phosgene (143)
* Pyridine (144)
* Sodium azide (145)
* Sodium cyanide (147)
Sulfur dioxide (101)
* Trichloroethylene (149)
* Vinyl chloride (150)
[76 FR 33609, June 8, 2011]
Annual CHP Review
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