Lewis & Clark College Chemical Hygiene Plan
CHEMICAL HYGIENE PLAN
LEWIS & CLARK COLLEGE
REVISION OF: MAY 2004
REFERENCE: Occupational Exposures to Hazardous Chemicals in
Laboratories (29 CFR 1910.1450)
A. General Principles
1.
2.
3.
4.
5.
Minimize all chemical exposures.
Avoid the underestimation of risk.
Provide adequate ventilation.
Follow safe work practices as outlined in this plan.
Observe the permissible exposure limits (PELs) and/or the
threshold limit values (TLVs).
Discussion
Because few chemicals are without risk, general precautions for
handling all laboratory chemicals have been developed. Such contact with
chemicals should be avoided at all times. Even for substances of no known
significant hazard, special precautions will be employed as detailed in
section D of this plan. In general, one should assume that mixtures of
chemicals are more hazardous than their component parts.
The best way to minimize skin contact is the use of protective gloves.
Adequate clothing for skin protection must be worn when working in the
laboratory. In particular, shorts and sandals should not be worn. It is
recommended that lab coats or lab aprons be worn at all times. Fume hoods
provide the best protection against airborne substances. Adequate eye
protection is achieved by wearing goggles whenever hazardous chemicals
are in use. In some instances, face shields are recommended.
This chemical hygiene plan is intended to be a regular, continuing
effort to produce a safe environment in all laboratories where hazardous
chemicals are used at Lewis & Clark College. All full-time and part-time
employees who work with hazardous laboratory chemicals will follow it. It
will be reviewed on an annual basis and updated as necessary.
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Lewis & Clark College Chemical Hygiene Plan
Permissible exposure limits (PELs) set by the Occupational Safety
and Health Administration (OSHA) and threshold limit values (TLVs) set by
the American Conference of Governmental Industrial Hygienists (ACGIH)
will not be exceeded in normal laboratory operations. If needed, air
monitoring of laboratories will be conducted in instances where highly toxic
substances are used regularly or likelihood of overexposure exists to assure
that these limits are not exceeded.
Chemical Hygiene Responsibilities
Responsibility for chemical hygiene rests at all levels. Specific
responsibilities are detailed as follows.
1. The President of Lewis & Clark College (chief executive officer)
must provide continuing support for chemical hygiene.
2. The Dean of Mathematical and Natural Sciences is responsible for
ensuring that laboratories within this College division follow the chemical
hygiene plan.
3. The Chemical Hygiene Officer (Laboratory Coordinator) has the
following responsibilities:
a) Work with administrators and employees to develop and
implement the appropriate chemical hygiene policies and safe
work practices.
b) Monitor procurement, use, and disposal of chemicals in
laboratories.
c) Maintain appropriate records of hazardous materials.
d) Provide periodic audits and formal inspections to ensure the
program is being followed.
e) Know the current legal requirements concerning regulated
substances.
f) Seeks ways to improve the chemical hygiene plan.
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Lewis & Clark College Chemical Hygiene Plan
g) Provide employee training.
4. The Laboratory Supervisors have the overall responsibility for
chemical hygiene with their laboratories. This includes professors, lab
instructors in charge of academic laboratories, research directors in charge of
research laboratories, and stockroom managers. The laboratory supervisor
shall:
1. Ensure that workers know and follow the chemical hygiene
plan that protective equipment is available and in working
order, and that appropriate training has been provided.
2. Provide regular, informal inspections for chemical hygiene.
3. Handle day-to-day training and correct deviations from the
plan.
4. Ensure that facilities are adequate and training has been
provided for the chemicals in use.
5. Laboratory workers (including solution preparers, laboratory
assistants, and stockroom assistants) are responsible for:
1. Planning and conducting each operation in accordance with
the written chemical hygiene procedures. This requires a
good working knowledge of the written chemical hygiene
plan.
2. Developing good personal hygiene work habits.
3. Using the personal protective equipment provided,
maintaining it in good working order, and informing
supervisors when new equipment is required.
If a worker persistently disregards the procedure outlined in the
chemical hygiene plan, it may be cause for dismissal at the discretion of the
laboratory supervisor or the chemical hygiene officer.
The Laboratory Facilities
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Lewis & Clark College Chemical Hygiene Plan
1. Design
The laboratory facilities at Lewis & Clark College will be designed, to
the best of the College’s ability, to conform to the following criteria:
a) An appropriate general ventilation system with air intake
and exhausts located so as to avoid contamination of the air
at or above the PELs or TLVs for the chemicals in use.
b) Adequate, well-ventilated storage space for chemicals.
c) Appropriate laboratory fume hoods and sinks.
d) Appropriate safety equipment including eyewash fountains
and deluge showers.
e) Arrangements for waste isolation, storage and disposal.
2. Maintenance
The chemical hygiene officer will conduct inspections of safety
equipment and fume hoods. Constant surveillance of this equipment by
employees is crucial to detect malfunctions between inspections. Equipment
will be repaired in a timely manner upon discovery of malfunctions and will
not be used until repairs are made.
3. Usage
The work conducted and its scale must be appropriate to the physical
facilities available, and especially, to the quality of ventilation.
4. Ventilation
1.
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General laboratory ventilation should provide a source of
air for breathing and to supply local ventilation devices. It
should not be relied on for protection against toxic
substances. It should ensure that laboratory air continually
replaced by makeup air to prevent an increase of airborne
concentrations of potentially hazardous substances during
the working day. Airflow should be directed into the
Lewis & Clark College Chemical Hygiene Plan
laboratory from non-laboratory supply sources and exhaust
to outside of the building.
2.
Fume hoods shall be maintained to provide at least 80 feet
per minute of airflow with the sash at a height adequate for
working comfortably. A minimum of 2.5 linear feet of hood
space per person shall be provided. Fume hood use will
take into account the need not to use the same hood for
substances that may react to one another in a hazardous
way.
3.
Other local ventilation such as ventilated storage cabinets,
canopy hoods, etc. shall be provided as needed.
4.
Modification to ventilation systems will be made if
thorough testing indicates that adequate worker protection is
not being provided.
B. Components of the Chemical Hygiene Plan
1. Basic Rules and Procedures
The chemical hygiene plan requires that laboratory workers know and
follow the rules and procedures contained therein. In addition to these
procedures the following rules apply.
a)
Accidents and spills. Notify the laboratory
supervisor and chemical hygiene officer immediately in case
of accidents or spills of hazardous materials.
1. Eye contact: Promptly flush the affected eye(s) with
water for at least 15 minutes. Seek medical attention.
Notify the laboratory supervisor and the chemical
hygiene officer.
2. Skin contact: Promptly flush the affected area with
water for at least 15 minutes. Remove any
contaminated clothing. Notify the laboratory
supervisor and the chemical hygiene officer. If there
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Lewis & Clark College Chemical Hygiene Plan
is any sign of overexposure or injury medical
attention will be sought.
3. Ingestion: Consult the material safety data sheet
(MSDS) for the material ingested. If there are any
adverse health effects via the ingestion route of entry,
contact Portland Emergency Services (911) then
contact Campus Safety (x7777). Follow the MSDS
first aid measures (if any) for ingestion.
4. Inhalation: Remove the affected person to fresh air.
Consult the material safety data sheet (MSDS) for the
material inhaled. If there are any adverse health
effects via the inhalation route of entry, contact
Portland Emergency Services (911) then contact
Campus Safety (x7777). Follow the MSDS first aid
measures (if any) for inhalation.
5. Spills: Consult the MSDS section pertaining to
accidental release measures. Promptly clean up small
amounts using appropriate personal equipment as
listed in the MSDS for the spilled material. Place the
material in a sturdy, leak proof container and seal
same. Ensure that a label that accurately identifies the
material and quantity of material is affixed to the
container. Contact the chemical hygiene officer for
disposal. For large amounts of spilled hazardous
material, evacuate the area and notify: the chemical
hygiene officer, Campus Safety, and Facilities
Services.
b)
1.
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General Laboratory Practices
Consider all laboratory chemicals to be hazardous
unless you have factual information to the contrary
(examples: MSDS, Merck Index profile, National
Toxicology Program abstract, etc.). Always consult the
MSDS before putting any substance into use.
Lewis & Clark College Chemical Hygiene Plan
2.
Familiarize yourself with all the hazards associated
with the substances you are using (read hazard warnings on
the container labels and the MSDS).
3.
Know when and how to use protective apparel and
equipment. See appendix A for appropriate glove selection.
4.
Do not work with any acutely hazardous substances if
you are alone in the laboratory.
5.
Do not eat, drink, smoke, or apply cosmetics in any
laboratory where hazardous substances are present.
6.
Do not directly smell, taste, or make skin contact with
any laboratory chemicals.
7.
8.
Never mouth pipette any laboratory chemical.
Avoid horseplay and practical jokes. This behavior is
prohibited in any natural science laboratory. Avoid any
action that may confuse, startle, or distract other persons
working in a laboratory.
c)
Choice of Chemicals
1.
Chemicals chosen for laboratory work must be
consistent with available ventilation. This may impose
limitations on quantities and types of chemicals that are used
in specific laboratories. Where there is potential for the
release of hazardous vapors or gases, a laboratory with an
appropriate fume hood will be selected.
2.
In general, the least hazardous chemical that can be
used in any given laboratory procedure will be selected.
3.
Permission shall be obtained from the laboratory
supervisor or chemical hygiene officer before handling any
carcinogen, teratogen, or mutagen. Permission shall also be
obtained before handling any chemical with a National Fire
Prevention Association or Hazardous Material Identification
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Lewis & Clark College Chemical Hygiene Plan
System rating of 4 for health, fire, or reactivity, or where
reactivity to water is indicated.
4.
Only chemicals provided by the Laboratory Coordinator
will be used in laboratories of Lewis & Clark College.
d)
Glassware and Equipment
1. Do not use damaged glassware.
2. Use equipment only for its designated purpose.
3. Use extra care with Dewar flasks and other evacuated glass
apparatus; shield or wrap them to contain chemicals and
fragments should an implosion occur.
e) Exiting
1.
Before exiting the laboratory for the day, all
glassware, chemicals, and apparatus must be returned to
appropriate storage locations.
2.
Ongoing operations that will be left unattended for
several hours or overnight must be labeled as to contents,
name of the responsible party, procedures for contacting the
responsible party should a mishap occur, and provisions to
contain any solid, liquid, or gaseous chemical that may be
released in the event of breakage.
3.
Laboratory bench space used during the day must be
decontaminated before exiting the laboratory. The space
must be, at a minimum, cleaned with water (unless a water
reactive substance has been used on the bench). If the
possibility that highly toxic or corrosive substances may
have contaminated the space, neutralization or other
decontamination methods must be employed before leaving
the area. Consult the MSDS for the substances in use for
proper methods.
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Lewis & Clark College Chemical Hygiene Plan
4.
Laboratory coats must be cleaned or discarded upon
significant contamination. Do not wash them with normal
family laundry. Following a load of lab coats, the washing
machine should be decontaminated by running a cycle of
water and household bleach at a concentration of 1/14 cup
bleach per gallon of water.
h) Planning
1.
Familiarity with hazard information is necessary before
beginning work with any hazardous substance. MSDS’ are
the primary source of information. The MSDS are located
in the main stockroom. Other references are also located
here.
2.
Protective procedures must be planned before beginning
work. Examples include:
a) Ensuring a supply of dry sand is close at hand
when working with water reactive substances
such as sodium metal.
b) Using an explosion shield when appropriate.
c) Using a fume hood or glove box when
appropriate.
i) Fume hoods
1.
Fume hoods should be sued for operations that might result
in the release of hazardous chemical vapors, dusts, or gases.
As a rule of thumb, use a hood when working with any
appreciably volatile substance with a TLV of less than 50
parts per million (ppm).
2.
Do not use fume hoods that are not functioning properly.
Proper function must be determined by face velocity
measurement. Nonfunctional hoods must be labeled as such
to prevent use until repaired.
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Lewis & Clark College Chemical Hygiene Plan
3.
Generally, storage of chemicals in fume hoods should be
avoided. If chemicals are stored in fume hoods, they must
be left in operation when not in use.
j) Vigilance
All laboratory workers must be alert to unsafe conditions and
correct same in a timely manner once detected.
k) Classes of compounds and general safety procedures
1. Acids
a) Wear goggles and gloves.
b) Wear a lab coat or apron.
c) When transporting 2.5 liter or 4 liter bottle, use
an appropriate corrosives carrier.
d) When pouring concentrated acids from reagent
bottles (2.5 liter or 4 liter) work in a fume hood
and wear a face shield.
e) When diluting acids always pour the acid into
the water (never pour the water into the acid).
f) Obtain the permission of the chemical hygiene
officer before using hydrofluoric acid or
perchloric acid. Read the MSDS before use.
g) Common signs and symptoms of overexposure:
(1)
(2)
(3)
(4)
Red, irritated skin.
Stinging or burn sensation
Blistering
Respiratory irritation.
2. Bases
a) Wear goggles and gloves.
b) Wear a lab coat or apron.
c) When transporting 2.5 liter or 4 liter bottles of
concentrated bases use a corrosives carrier.
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Lewis & Clark College Chemical Hygiene Plan
d) Work in a fume hood when preparing
concentrated base solutions or when pouring
concentrated ammonium hydroxide.
e) Common signs and symptoms of overexposure:
(1)
(2)
(3)
(4)
Skin irritation
Respiratory irritation
Ulceration of skin
Slippery feeling skin
3. Organic Solvents
a) Wear goggles and gloves.
b) Use a flammables carrier to transport 2.5 and 4
liter bottles.
c) Use only in well-ventilated areas or under fume
hoods.
d) Use well away from ignition sources such as
open flames, sparks, or electric arcs.
e) Common signs and symptoms of overexposure:
(1)
(2)
(3)
(4)
(5)
(6)
(7)
Narcosis.
Dizziness.
Disorientation.
Headache
Coughing
Nausea
Skin irritation
4. Metals
a) When working with air and/or water reactive
metals wear goggles, gloves, and handle only
with forceps in a fume hood.
b) Avoid inhalation of dusts.
c) Always handle mercury wearing gloves.
d) Common signs and symptoms of overexposure:
(1) Skin irritation
(2) Respiratory irritation
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Lewis & Clark College Chemical Hygiene Plan
5. Metal Compounds
a) Read the appropriate MSDS prior to using these
substances.
b) Common signs and symptoms of overexposure:
(a) Varies widely according to type
of compound.
(b) Most commonly-skin irritation.
6. Carcinogens
a) Avoid using carcinogens or suspected
carcinogens (check status with reference to the
MSDS, abstracts of NTP, International Agency
for Research on Cancer (IARC), and OSHA
regulated substances).
b) Wear gloves and goggles when handling
carcinogens.
c) Liquid carcinogens must be handled in a
designated fume hood to avoid vapor
inhalation.
d) Avoid inhalation of dusts from solid
carcinogens.
e) Ensure all carcinogen containers carry
appropriate hazard warning labels.
f) The chemical hygiene officer must grant
permission before using carcinogens for the
first time.
g) Common signs and symptoms of overexposure:
cancer (target organ(s) vary according to
specific substance exposure).
7. Allergens and Embryotoxins (Mutagens and Teratogens)
a) Allergens (e.g. isocyanates, penicillin’s,
enzymes, and aniline): wear suitable gloves to
prevent skin contact.
b) Embryotoxins (e.g. organomercurcials, lead
compounds, formamide): handle only in a hood
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whose performance has been confirmed, using
appropriate gloves.
c) Common signs and symptoms of overexposure:
(1)
(2)
(3)
(4)
Red itchy skin.
Hives
Difficulty breathing
Anaphylactic shock
8. Highly Toxic Chemicals (Poisons)
a) Follow all normal procedures based on the type
of chemical.
b) Use only in designated areas.
c) Permission must be obtained from the
laboratory supervisor and the chemical hygiene
officer before using these substances.
d) Common signs and symptoms of overexposure
vary widely depending on the specific chemical
exposure.
9. Compressed Gases
a) All cylinders of compressed gas must be
secured to a wall or bench.
b) The regulator must be appropriate to the
cylinder contents.
c) To transport cylinders: remove the regulator,
replace the safety cap, and use a cylinder cart
with the cylinder secured to the cart to
transport.
d) All cylinders must be stored upright with the
safety cap screwed on hand tight.
e) Use toxic, flammable, or reactive gases in an
appropriate fume hood.
10.Cryogens (Liquid nitrogen, helium, carbon dioxide, etc.)
a) Heavy protective gloves must be worn when
handling or dispensing cyrogens.
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Lewis & Clark College Chemical Hygiene Plan
b) Goggles must be worn.
c) Small amounts of liquid cryogens must be
transported in dewars. Dewars must be taped to
avoid shattering or have a protective cover or
netting surrounding the dewar.
d) Dewars must be labeled as to contents and
hazards.
e) Common signs and symptoms of overexposure:
skin irritation, freeze burns, and frost bite.
l) Glass Tubing
1. All broken or sharp edges must be fire polished.
2. When cutting glass tubing, wear goggles. Use a triangular
file or diamond pencil to score the glass. Protect hands by
using heavy gloves or by wrapping a towel around the
glass tubing. Break the glass by placing thumbs opposite
the score and push out the tubing. If it does not separate
easily, make another score with the file and try again. Fire
polish the ends.
3.
When inserting tubing into a rubber stopper, lubricate the
tubing and stopper hole with liquid soap and glycerin.
Wrap a towel around the glass tubing close to the stopper
to minimize the strain on the glass and the danger of
breakage.
C. Chemical Procurement, Distribution, and Storage
a) Procurement
The chemical hygiene officer will be responsible for procurement of
chemicals. The chemical hygiene officer will maintain information
concerning the quantity and storage location of new chemicals ordered. In
addition a current inventory of all chemicals will be maintained.
A MSDS will be obtained for all new chemicals purchased. Before a
chemical is released for use, individuals who will be involved in its use will
know information for proper handling, storage, and disposal. The chemical
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Lewis & Clark College Chemical Hygiene Plan
hygiene officer from any vendor or donor with an adequate identifying label
will accept no container.
b) Stockrooms
Chemicals must be stored in the appropriate location: acids and bases
in the acids and bases storerooms, respectively; flammable solvents in
solvent cage, solvent shed, or ventilated storage cabinet; and metals in the
metals storage room. Other chemicals may be stored in the main stockroom.
All containers of chemical reagents are to be color-coded with tape to
indicate the type of hazard associated with the chemical. The colors to used
are as follows:
1.
2.
3.
4.
5.
Red-flammable.
Yellow-reactive.
White-corrosive.
Blue-toxic.
Orange-nonhazardous.
In addition, striped tape shall be used for especially hazardous or
reactive chemicals in the first three categories:
1. Red/white stripe.
2. Yellow/black stripe.
3. White/black stripe.
When a chemical has more than one type of hazard associated with it,
it shall be coded according to the most severe hazard. Flammability is the
most severe hazard followed by reactivity, corrosivity, and toxicity.
Chemicals shall be stored alphabetically within each hazard classification.
Those chemicals marked with striped tape shall be placed in secondary,
outer containers on the shelves. The secondary containers will be accurately
labeled as to contents of the primary containers.
The quantities of chemicals stored in the laboratories shall be kept to a
minimum as determined by the needs of either research or curriculum to be
carried out in the particular laboratory. Chemicals not required for these
purposes should be returned to the stockroom. Specialized chemicals
purchased for a particular laboratory may be stored in that laboratory.
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Lewis & Clark College Chemical Hygiene Plan
Carcinogens and suspect carcinogens will be stored on a separate shelf
in each storage area. The shelf will be clearly marked as containing
carcinogens and suspect carcinogens. All containers of carcinogens will also
be clearly labeled as such. The carcinogens will also be separated based on
hazard classification (toxicity, reactivity, flammability, etc.).
Stockrooms will be open only during times when laboratories are in
use or classes are in session. During other hours, a laboratory supervisor or
the chemical hygiene officer may provide access to the stockroom if
necessary.
c) Distribution
Before obtaining chemicals from stockrooms, employees shall be
familiar with the hazards associated with the chemicals they are using. The
MSDS’s are provided for this purpose. Access to the stockroom will be
limited and only the stockroom assistant on duty may draw chemicals from
storage and issue them. At other times the stockrooms will be kept locked.
Only the chemical hygiene officer or laboratory supervisor may draw
chemicals from the stockrooms during these times. A record of all
chemicals issued from the stockroom will be kept and record: the user’s
name, date of issue, amount issued, and laboratory in which it will be used.
d) Laboratory Usage and Storage
Amounts of chemicals taken to and stored in the laboratory should be
as small as is practical. Storage on bench tops and in fume hoods should be
avoided whenever possible. Unused chemicals checked out from the
stockroom shall be returned as soon as they are no longer needed.
Chemicals in glass bottles shall not be stored on the floor in laboratories.
Carcinogens, suspect carcinogens, and compounds of high toxicity
shall be used only in designated areas within each laboratory. These areas
shall be clearly marked.
Environmental Monitoring
It is the aim of this plan to main usage of chemicals such that the
airborne concentrations will be well below the PELs or TLVs. If a highly
toxic substance is used regularly in a laboratory (3 times per week or more),
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Lewis & Clark College Chemical Hygiene Plan
air monitoring will be conducted every 6 months to ensure that levels do not
exceed the PEL or TLV. If levels do exceed the PEL or TLV, measures will
be taken to lower the airborne concentration and monitoring will be repeated
to ensure the effectiveness of the actions taken.
Housekeeping, Maintenance, and Inspections
a) Housekeeping
Floors shall be cleaned regularly. In academic laboratories, all
benches and common counter space shall be cleaned regularly. Each
bench shall be cleaned by the student using it at the end of each lab
period. The laboratory assistant shall clean the common counter space.
Access to safety equipment, exits, utility controls, and electrical
equipment shall never be blocked.
b) Inspections
A monthly safety inspection (appendix D) shall be conducted to
ensure that all fire extinguishers, fire blankets, first aid kits, eyewash
stations, and deluge showers are present and in good working order. The
chemical hygiene officer on a quarterly basis shall perform formal
housekeeping and chemical hygiene inspections.
c) Maintenance
All safety equipment shall be maintained in good working order.
Repair to defective safety equipment shall be ordering in a timely
manner.
Medical Emergencies
a) In case of an emergency, services will be provided by the
Emergency Room, Oregon Health Sciences University, 3181 SW
Sam Jackson Parkway Road.
b) Any individual who exhibits signs or symptoms of overexposure to
a hazardous or toxic laboratory chemical should consult with a
qualified physician to determine whether medical care is required.
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Lewis & Clark College Chemical Hygiene Plan
In the case of employees of the College, these services will be
provided at College expense.
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.
b) Identity labels, showing the contents of containers (including those
for waste materials) and associated hazards. The labels on
secondary containers should contain, in addition to the above
information, the date the solution was prepared, and the name of
the preparer.
c) Location signs for safety showers, eyewash stations, and other
safety and first aid equipment.
d) Carcinogen labels on shelves where carcinogens are stored.
e) Warnings at areas or equipment where special or unusual hazards
exit.
Records
a) Medical records. An accident report (appendix C) shall be filed for
all accidents involving employees. If medical treatment is
required, a copy of medical findings will be forwarded to the
Human Resources department. Medical records will not be held
outside of Human Resources. Medical records shall be maintained
for a period of 30 years following termination of employment. All
medical records are to be treated as confidential.
b) Chemical Hygiene Plan Records. The chemical hygiene officer
shall review and revise the Chemical Hygiene Plan on an annual
basis. A copy of the most recent revision will be kept in the
chemical hygiene officer’s office.
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Lewis & Clark College Chemical Hygiene Plan
c) Inventory and Use of High Risk Substances. A current inventory
shall be maintained for all laboratory chemicals. A record of the
usage of high-risk substances (those that are highly toxic,
carcinogenic, or reactive) shall be maintained through the use of
check out sheets in the stockrooms. These sheets shall include the
following information: date, user’s name, chemical name, amount
of chemical, where the chemical is to be used. In addition, a
record shall be kept of the purchase of all laboratory chemicals.
Waste Disposal
Refer to the Hazardous Waste Policy for details on hazardous waste
disposal. Hazardous wastes shall be collected in appropriately labeled
receptacles in all laboratories. Wastes shall be segregated into organic
waste, inorganic waste, acidic waste, and base waste. When bottles become
full, they shall be moved to an outside storage location and combined into
drums with like wastes. The College’s Occupational Health & Safety
Officer shall be notified of candidate wastes prior to disposal, and will
approve and authorize disposal actions. All disposal actions shall be
accordance with Oregon Department of Environmental Quality (DEQ) and
U.S. Environmental Protection Agency (EPA) regulations and guidelines.
Non-hazardous wastes shall be disposed of in a manner consistent
with the protection of the environment.
Broken glass shall be collected in labeled containers. When full, the
containers shall be sealed shut and disposed of.
Training and Information
The aim of this program is to assure that all employees at risk of
exposure to hazardous laboratory chemicals are adequately informed as to
the risk, exposure control measures, and accident prevention. Employee
shall be familiar with the procedures outlined in this plan the procedures to
be used in case of accident or emergency. Employees shall be familiar with
the Hazard Communication labeling requirements. Employees are directly
responsible for labeling secondary containers as to contents. Employees
shall be aware of reference materials available (including MSDS’) and their
location. Employees shall receive safety training upon being hired and be
made aware of the requirements specified by this plan.
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Lewis & Clark College Chemical Hygiene Plan
Training and information is a regular continuing activity. Training
shall occur upon the hiring of each new employee. It shall also be updated
and reviewed annually. Additional training will take place if and when new
hazardous are introduced into the work place. Employees may request
additional training or review from the chemical hygiene officer or laboratory
supervisor if they feel they are not adequately informed as to hazards present
in their work places or proper procedures associated with the control of
hazards of chemicals or equipment they are using.
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Appendix A
GLOSSARY
PEL: Permissible Exposure Limit. Synonymous with Threshold
Limit Value (TLV). The permissible concentration of a material to which a
worker may be exposed for an eight-hour workday over a forty-hour
workweek without adverse health effects.
STEL: Short Term Exposure Limit. The permissible concentration
of a material to which a worker may be exposed in a single exposure of
fifteen minutes or less without adverse acute health effects.
TCLo: The lowest concentration of an airborne material that is
capable of causing adverse health effects in human beings.
Toxic: Any chemical with any of the following characteristics:
a)
A chemical that has a median lethal dose for 50% of an
unprotected population (LD50) of more than 50
milligrams per kilogram of body weight but not more
than 500 milligrams per kilogram of body weight when
administered orally to albino rats weighing between 200
and 300 grams each.
b)
A chemical that has a median lethal dose (LD50) of more
than 200 milligrams per kilogram but not more than 1000
milligrams per kilogram of body weight when
administered by continuous skin contact for 24 hours (or
less if death occurs within 24 hours) with the bare skin of
albino rabbits weighing between two and three kilograms
each.
c)
A chemical that has a median lethal concentration (LC50)
in air of more than, 200 parts per million (ppm) but not
more than 2000 ppm by volume of gas or vapor, or more
than two milligrams per liter, but not more than 20
milligrams per liter of mist, fume, or dust, when
administered by continuous inhalation by continuous
inhalation for one hour (or less if death occurs within one
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hour) to albino rats weighing between 200 and 300 grams
each.
TLV: Threshold Limit Value. A standard set by the American
Conference of Governmental Industrial Hygienists (ACGIH) for allowable
inhalation of concentrations of airborne substances in workroom air
averaged over eight hours per day, forty hours per week, over a working
lifetime of 30 years.
TWA: Time Weighted Average. Permissible airborne concentrations
of contaminants calculated by averaging exposures over eight hours per day,
forty hours per week, over a working lifetime of 30 years without adverse
health effects. PEL=TLV=TWA unless otherwise noted.
Revision of May 25, 2004
Lewis & Clark College Chemical Hygiene Plan
Appendix B
GUIDES TO HUMAN TOXICITY
Inhalation TCLo
>10,000 ppm
200-10,000 ppm
200-2,000 ppm
20-200 ppm
<20 ppm
Effect
Non-toxic
Practically non-toxic
Slightly toxic
Moderately toxic
Highly toxic
LD50
Effect
Example
>15,000 mg/kg
Ethanol
5,000-15,000
gm/kg
500-5,000 mg/kg
50-500 mg/kg
Relatively
harmless
Practically nontoxic
Slightly toxic
Moderately toxic
Dose (70 kg
human)
>1 quart
Salt
1 pint – 1quart
Morphine
DDT
1-30 mg/kg
<1 mg/kg
Highly toxic
Extremely toxic
Parathion
Botulinum toxic
1 ounce-1 pint
1 teaspoon- 1
ounce
7 drops – 1 tsp.
<7 drops
Revision of May 25, 2004
Lewis & Clark College Chemical Hygiene Plan
Appendix C
ACCIDENT/INJURY REPORT
Worker’s Name: ______________________________________
Date + Time of accident: ________________________________
Accident location: _____________________________________
Nature of accident/injury (describe what happened):
Actions taken (first aid, medical care, clean up, etc.)
Contributing factors (unsafe conditions, unsafe behavior, equipment
malfunction, etc.)
Worker signature: ___________________ Date:______________
Supervisor signature: _________________ Date: _____________
Revision of May 25, 2004
Lewis & Clark College Chemical Hygiene Plan
Appendix D
CHEMICAL HYGIENE SAFETY INSPECTION
Floor
1
1
Room
South hall
Hall
Item
Fire exting.
Fire exting.
1
1
1
1
1
1
1
1
1
1
1
1
1
North hall
114
114 A
114 A
114 A
115
115
115
115
115
116
116
116
Fire exting.
Fire exting.
Fire exting.
Deluge shower
Eye wash
Fire exting.
Fire exting.
1st aid kit
Deluge shower
Eye wash
Fire blanket
1st aid kit
Fire exting.
1
116
Fire exting.
1
116
Fire exting.
1
116
Fire exting.
1
1
1
116
116
116
Deluge shower
Deluge shower
Eye wash
1
116
Eye wash
1
1
1
118
118
East Hall
Fire exting.
Eye wash
Deluge shower
1
1
1
1
119
119
120
East Hall
Fire exting.
Eye wash
Fire exting.
Deluge shower
1
East Hall
Eye wash
2
2
2
2
2
2
East Hall
East Hall
222
220
North Hall
215
Fire exting.
Fire exting.
Fire exting.
Fire exting.
Fire exting.
Fire exting.
Revision of May 25, 2004
Location
Next to 109
Between
112/115
Faces N. stairs
NW corner
W. end bench
W. wall
W. wall
NE corner
SW bench
NE corner
NE corner
NE corner
W. wall center
NE corner
E. end bench
AB
W. end bench
CD
W. end bench
EF
E. end bench
GH
SE corner
NE corner
W. end bench
CD
E. end bench
EF
W. end bench
W. end bench
Between
118/119
W. end bench
W. end bench
W. end bench
Between
120/121
Between
121/122
Across fm 234
Across fm 225
NE corner
S. end bench
Across fm 217
N. end bench
AB
Works
Doesn’t work
Lewis & Clark College Chemical Hygiene Plan
2
215
Fire exting.
2
215
Fire exting.
2
215
Fire exting.
2
2
2
215
215
215
Deluge shower
Deluge shower
Eye wash
2
215
Eye wash
2
2
2
2
2
2
2
2
215
215
North hall
213
213
213
West hall
224
1st aid kit
Fire blanket
Fire exting.
Fire exting. x2
Eye wash
1st aid kit
Fire exting.
Fire exting.
2
224
Fire exting.
2
224
Fire exting.
2
2
2
2
2
224
224
224
224
224
Fire exting.
Fire blanket
1st aid kit
Deluge shower
Eye wash
2
2
2
2
2
3
224A
224A
224A
West Hall
West Hall
301
Shower
Eye wash
Fire exting.
Fire exting.
Fire exting.
Fire exting.
3
3
3
3
306
307
307
310
Fire exting.
Fire exting.
1st aid kit
Fire exting.
3
310
Fire exting.
3
310
Fire exting.
3
310
Fire exting.
3
3
3
3
310
310
310
310
Fire blanket
Shower
Shower
Eye wash
Revision of May 25, 2004
N. end bench
CD
N end bench
EF
N. end bench
GH
NW corner
NE corner
S. end bench
AB
S. end bench
GH
N. wall
SW center
By 211
Ends of shelves
NE corner
SE corner
By 211
N. end bench
AB
N. end bench
CD
S. end bench
AB
SE corner
N wall center
S. wall
SW corner
S end bench
CD
E. wall
E. wall
E. wall
Across fm 226
Across fm 206
SE end lecture
bench
E. end bench
S. end shelves
S. end shelves
N. end bench
MI
N. end bench
NJ
N. end bench
KO
N. end bench
LP
S. wall center
SW wall
NE corner
S. end bench
Lewis & Clark College Chemical Hygiene Plan
3
310
Eye wash
LP
W. wall by 307
Inspected by: ___________________ Date: ___________________
Revision of May 25, 2004
Lewis & Clark College Chemical Hygiene Plan
Appendix E
CHEMICAL HYGIENE/HOUSEKEEPING QUARTERLY
INSPECTION REPORT
DATE: ___________________
ROOM NUMBER: _______________
INSPECTED BY: _____________________

Satisfactory

Unsatisfactory
PROBLEMS/VIOLATIONS:
_______
_______
_______
_______
_______
_______
_______
_______
Blocked access to safety equipment
Missing/malfunctioning safety equipment. Specify________
Unlabeled containers
Unsecured gas cylinders
Hood inaccessible due to chemical/equipment storage
Full waste containers stored in laboratory
Dirty bench tops/countertops
Other-specify ______________________________________
ACTION TAKEN
_____________________________________________________________
_____________________________________________________________
_____________________________________________________________
_____________________________________________________________
_____________________________________________________________
Revision of May 25, 2004