EDITION
PRECISION
MEASUREMENT
PRODUCTS
& SERVICES
• PRECISION LABORATORY WEIGHTS
• PRECISION INDUSTRIAL WEIGHTS
• SPECIALTY WEIGHTS
• CAST IRON WEIGHTS
• CALIBRATION AND CERTIFICATION
SERVICES
Accredited by the National Voluntary Laboratory Accreditation Program for the
specific scope of accreditation under lab code 105001.
Contents
Introduction
Customer Assistance Information ................................................................................................ 1
Ordering Mass Standards or Test Weights .................................................................................. 2
Accuracy Classes for Mass Standards and Test Weights ............................................................. 2
International Laboratory Weights & Precision Mass Standards Weight Classification (OIML) ........ 3-4
U.S. Laboratory Weights & Precision Mass Standards Weight Classification (ASTM) ..................... 5
U.S. Field Standard Weight Classification .................................................................................... 6
Conversion Factors for Units of Mass .......................................................................................... 7
Metric Weight Tolerances ......................................................................................................... 8-9
Avoirdupois Weight Tolerances ................................................................................................. 10
Certification Services
Traceability ............................................................................................................................... 11
Accuracy, Traceable and Calibration Certificates ........................................................................ 12
How Will a NVLAP-Accredited Calibration Lab Benefit Me? ........................................................ 13
NVLAP Traceable Certificate ..................................................................................................... 14
NVLAP Weight Calibration ........................................................................................................ 15
Traceable and Calibration Certificate Ordering Information and Definitions .................................. 16
Weights
PRECISION LABORATORY WEIGHTS
Precision Laboratory Stainless Steel Weight Sets
Metric ......................................................................................................................... 17-28
Avoirdupois ....................................................................................................................... 29
Precision Laboratory Stainless Steel Individual Weights
Metric ....................................................................................................................................... 30
Avoirdupois .............................................................................................................................. 31
Mass Standards ...................................................................................................................... 32
OIML Precision Laboratory Stainless Steel Weight Sets .................................................... 33-35
OIML Precision Laboratory Stainless Steel Individual Weights ............................................... 36
PRECISION INDUSTRIAL WEIGHTS
Electronic Balance Calibration Weights
Metric ....................................................................................................................................... 37
Avoirdupois .............................................................................................................................. 38
Individual Weights/Class F and ASTM Class 6 .................................................................. 39-43
Avoirdupois Cylindrical Weight Sets/Class F ..................................................................... 44-50
Metric Cylindrical Weight Sets/Class F .............................................................................. 51-55
SPECIALTY WEIGHTS
Grain Weights .......................................................................................................................... 55
Avoirdupois to Metric Conversion Weight Sets/Class F ........................................................... 56
Troy and Pennyweight Sets/Class F .................................................................................. 56-57
Sealer Weight Sets/Class F
Avoirdupois ......................................................................................................................... 58-59
Metric .................................................................................................................................. 60-61
Lab Weight Accessories .......................................................................................................... 62
CAST IRON WEIGHTS
Cast Iron Test Weights ...................................................................................................... 63-64
Interlocking Weights and Hangers ........................................................................................... 65
Counterpoise Weights and Hangers .................................................................................. 66-68
Heavy Capacity Weight Accessories ....................................................................................... 69
Policies
Equipment Return Information ................................................................................................. 70
Warranty Statement ................................................................................................................ 70
We’re your ISO 9001 Registered single source
supplier offering quality products and services...
Our metrology labs and precision machining centers manufacture and
calibrate a full line of avoirdupois and metric precision weights. All of our
weight products conform to National Institute of Standards and Technology
(NIST), ANSI/ASTM and Organization Internationale de Metrologie Legale
(OIML) specifications.
Our technicians use primary and secondary mass standards directly traceable
to NIST. Our weighing instruments and mass standards are meticulously
maintained in accordance with ANSI/NCSL Z540-1 (which replaced Military
Standard 45662A). Strict adherence to our exacting standards of quality, and
an unequalled dedication to customer service
means all products and services from Rice
Lake Weighing Systems will be right the first
time, every time.
We believe in and fully support quality
assurance programs to improve American
manufacturing standards. Therefore, we hold
membership and actively participate in...
•
•
•
•
•
Accredited Weight Calibration
Services *
NIST Mass Measurement Assurance
Program
Mid American Measurement Assurance
Program
National Conference of Standards
Laboratories
National Conference of Weights and
Measures
*Accredited by the National Voluntary Laboratory Accreditation Program (NVLAP) for the specific scope of accreditation under Lab Code 105001.
Traceability & Calibration Certificates
For new test weights, or existing mass standards requiring
recalibration, our metrology lab can document traceability
for your weights to NIST. Rice Lake metrologists can provide
Traceability and Weight Calibration Certificates in either standard or
Military Standard version.
Ours is one of the first private labs in the nation to be awarded
accreditation by the National Voluntary Laboratory Accreditation
Program (NVLAP) for precision test weights and mass standards to
accuracy classes I, II, and III. This accreditation assures calibration
customers that our lab procedures and standards meet ISO Guide 25
and ANSI/NCSL Z540-1 requirements.
Balance Repair & Adjustment Services
Our Total Measurement Assurance Program for balances
includes cleaning, testing, repair and adjustment to original
specifications. Test results can be documented on a TMAP Test
Certificate suitable for ISO 9000 use.
ORDERS: 800-357-8627
230 West Coleman Street • Rice Lake, Wisconsin 54868 • USA
TEL: 715-234-9171 • FAX: 715-234-6967
WEB SITE: http//www.rlws.com
© Rice Lake Weighing Systems 1998
PN 32332 8/98
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t
r
o
p
p
u
s
sales &
United States:
800-357-8627
Canada and Mexico:
800-321-6703
Standard Telephone:
715-234-9171
24-hour Fax Orders:
715-234-6967
Internet Orders:
www.rlws.com
Weekdays:
6:30 a.m. to 6:30 p.m.
(Central Time)
Saturday:
8:00 a.m. to 12 noon
(Central Time)
.
.
.
s
e
c
i
v
r
e
s
g
n
i
p
p
i
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s
COURIER SERVICE
FedEx
Air freight guaranteed to be at
most destinations the next
business day (contiguous
USA only). Northern Canada
up to 2 days. Saturday
delivery available to most
destinations at an extra
charge.
FedEx Express Saver
Ground delivery guaranteed
to be at most destinations in
3 business days (contiguous
USA only) by 4:30 p.m.
UPS Red
Air freight guaranteed to be at
most destinations the next
business day (contiguous
USA only). Canadian
deliveries 1 to 3 days.
Saturday delivery available to
most destinations at an extra
charge.
UPS Blue
Air freight guaranteed to be at
most destinations in 2
business days (contiguous
USA only).
UPS Orange
Delivery guaranteed to be at
most destinations in 3
business days (contiguous
USA only).
UPS Ground
Via truck. Delivery between 1
and 7 days (contiguous USA
only, see map below).
Estimated days for
UPS ground
delivery from our
plant in Rice Lake,
Wisconsin.
Express Mail
Air freight via U.S. Postal
Service guaranteed to be at
most destinations the next
business day (contiguous USA
only). Canadian deliveries 1 to
3 days. No Sunday deliveries.
V.I.P. Counter-to-Counter
This is a special small package
(up to 100 lb) courier service
we offer via commercial airlines
for counter-to-counter delivery
in the same business day
(Monday through Saturday).
INTERNATIONAL
COURIER SERVICE
DHL, FedEx, UPS
Overseas express air freight.
Call for estimated delivery.
FORWARDERS
We can provide service
through a forwarder of your
choice, or select one of our
preferred forwarders.
AIR FREIGHT:
BAX Global,
Emery Worldwide
OCEAN FREIGHT:
BAX Global, ABF,
Roadway, Yellow
Overseas ocean freight.
Call for estimated delivery.
TRUCK SERVICE
ABF, Yellow, Roadway,
CCX, American Freightways,
Mid-States
Less-than-Truckload (LTL)
Stan Koch & Sons Trucking
(Truckload)
1 Day
2 Days
3 Days
4 Days
5 Days
✩
2
Ordering Mass Standards or Test Weights
The introductory pages of this catalog contain all the information you’ll need to place your mass standard or test weight order.
If you’re new to the specialized field of metrological weights, the ordering process can be broken into six simple steps:
1. Determine the regulatory standard that applies to your application. The international standard (OIML) is summarized on
pages 3-4; the U.S. standard (ASTM E 617) is on page 5; the U.S. commercial standard for Legal-For-Trade applications
(NIST Handbook 105-1) is on page 6.
2. Determine the accuracy class within the standard that your weights must meet. Accuracy classes are found in the chart
on the bottom of this page.
3. Determine the tolerances necessary within that class required for your application. See pages 8-9 for metric weight
tolerances, and page 10 for avoirdupois weight tolerances.
4. If traceability is required, determine if your weights require traceability to the national or international standard. See the
chart on the bottom of this page, and more detailed information on pages 11-12.
5. Determine if your weights require a Traceable Certificate or a Weight Calibration Certificate. See the chart on the bottom
of this page, and more detailed information on pages 12-16.
6. If your weights will require legal for trade certification prior to placing them in service, decide if you would like the
certification to be handled by Rice Lake Weighing Systems’ National Voluntary Laboratory Accreditation Program
(NVLAP)-accredited lab, or sent to your state lab. For information on the certification process of NVLAP-accredited
labs, see page 13.
Accuracy Classes for Mass Standards and Test Weights
CURRENT STANDARDS AND TEST WEIGHTS ACCURACY CLASSES
TYPICAL USE
OIML1
ASTM E617 2
NIST 105-13
OBSOLETE
STANDARD
NBS CIR. 547 4
Weight Calibration Certificate Essential
Primary Laboratory Reference Standard
E1
High precision standards for calibration of
weights and special precision analytical
balances accuracy Classes I and II
(class number depending on precision).
E2
0, 1
M, S
Weight Calibration Certificate Recommended
High Accuracy Balances
Working standard for precision analytical work,
built-in weights and external weights used to
calibrate moderate precision balances.
F1
2
3
S1
F2
Traceable Certificate Acceptable
4
P
M1
5
Q
M2
6
Industrial Scales & Balances
Accuracy Class III industrial scales, dial scales,
trip balances, platform scales. Also used for
accuracy Class IIIL and IV, and weights used
to calibrate scales in legal-for-trade applications.
M3
1
2
3
4
See pages 3-4 for more information on OIML weight classifications.
See page 5 for more information on ASTM E617 weight classifications.
See page 6 for more information on NIST 105-1 Class F weight classification.
Listed for reference only. NBS Cir. 547 has been superseded by ASTM E617 classifications.
F
T
3
International Laboratory Weights & Precision Mass Standards
Weight Classification (OIML)
Excerpts from the Standard Specification for Laboratory Weights and Precision
Mass Standards as Regulated by the Organization Internationale De Metrologie
Legale (OIML): 1994 Edition (E) Publication OIML R 111
This specification covers various classes of weights and mass standards used in laboratories, and weights used for field
standards and commercial measurement.
OIML Weight Classification
and Selection
OIML is a worldwide, intergovernmental organization whose
primary aim is to harmonize the regulations and metrological
controls applied by the National Metrological Services, or
related organizations of member states.
The two main categories of OIML publications are:
1.
2.
International Recommendations (OIML R), which are
model regulations that establish the metrological
characteristics required of certain measuring instruments
and which specify methods and equipment for checking
their conformity; the OIML Member States shall implement these Recommendations to the greatest possible
extent.
International Documents (OIML D), which are informative
in nature and intended to improve the work of metrological services.
International Recommendations and International Documents
are published in French (F) and English (E), and are subject to
revision.
OIML publications may be obtained from the Organization’s
headquarters:
Bureau International de Metrologie Legale
11, Rue Turgot - 75009 Paris - France
Telephone: 33 (1) 48 78 12 82 and 42 85 27 11
Fax: 33 (1) 42 82 17 27
Telex: 234 444 SVP SERV F ATTN. OIML
General Information on Weight Classes:
E1, E2, F1, F2, M1, M2
This Recommendation contains the principle physical
characteristics and metrological requirements for weights
which are used:
For the verification of weighing instruments,
For the verification of weights of a lower class of
accuracy.
The nominal values of mass of the weights covered by this
Recommendation range from 1 milligram (mg) to 50 kilograms (kg).
This Recommendation applies to weights in classes of
accuracy as follows: E1, E2, F1, F2, M1, M2 and M3.
Weights used for the verification of weighing
instruments
The classes of accuracy of the weights used for the
verification of weighing instruments shall be specified in the
appropriate International Recommendations relating to these
instruments.
Weights used for the verification of weights
of a lower class of accuracy
E1 Weights intended to ensure traceability (see OIML R
33, paragraph A.3) between national mass standards
(with values derived from the International Prototype of
the kilogram) and weights of class E2 and lower.
Class E1 weights or sets of weights shall always be
accompanied by a calibration certificate.
E2 Weights intended to be used for the initial verification of
weights of class F1. They may be used as class E1
weights if they comply with the requirements for surface
roughness and magnetic susceptibility of class E1
weights and if their calibration certificate gives the
appropriate data.
F1 Weights intended to be used for the initial verification of
weighs of class F2.
F2 Weights intended to be used for the initial verification of
weights of class M1 and possibly M2.
M1 weights intended to be used for the initial verification of weights of class M2.
F1, F2 Weights used with instruments of accuracy class I.
F2 Weights intended to be used for important commercial
transactions (e.g. gold and precious stones) on
weighing instruments of accuracy class II.
M1 Weights intended to be used with weighing instruments
of accuracy class II.
M2 Weights intended to be used in normal commercial
transactions and on weighing instruments of accuracy
class III.
M3 Weights intended to be used on weighing instruments
of accuracy classes III and IIII.
The accuracy of weights used with weighing instruments
shall be chosen in accordance with the requirements of
OIML R 76 “Nonautomatic weighing instruments.”
(Continued on next page)
4
International Laboratory Weights & Precision Mass Standards
Weight Classification (OIML)
Excerpts from the Standard Specification for Laboratory Weights and Precision
Mass Standards as Regulated by the Organization Internationale De Metrologie
Legale (OIML): 1994 Edition (E) Publication OIML R 111 (Continued)
Construction
Recalibration or Periodic Verification
Class E1 and E2 Weights
The categories of weights which are subject to calibration or
initial verification should either be recalibrated or have a
periodic verification. This makes it possible to verify that the
weights maintain their metrological properties. Any weights
found defective at the time of the periodic verification shall
be discarded or readjusted.
Class E1 and E2 weights shall be solid and have no
cavity open to the atmosphere. They shall have an
integral construction, i.e., consist of a single piece of
material.
Class F1 and F2 Weights
Class F1 and F2 weights from 1 g to 50 kg may be one
or more pieces from the same material. Class F1 and
F2 weights may contain an adjusting cavity; however,
the volume of this cavity shall not exceed one-fifth of
the total volume of the weight, and the cavity shall be
closed either by means of the lifting knob or by any
other suitable device.
Calibration or Initial Verification
Certain categories of new weights may either be calibrated
individually or be subject to initial verification, depending on
their intended use and the national legislation of the country.
Calibration weights shall be accompanied by a certificate
which gives at least the conventional mass of each weight,
its expanded uncertainty and the value of the coverage
factor k (see coverage factor k).
Class E1 weights shall always be accompanied by certificates.
The certificate for class E1 weights shall mention at least the
values of conventional mass, the expanded uncertainty and
the coverage factor k, and the density or volume for each
weight.
The optional certificate for class E2 weights shall mention at
least:
the values of conventional mass of each weight and the
extended uncertainty and the coverage factor k, or
the information required for class E1 weights certificates
(under the conditions of the above paragraph).
Coverage Factor k - Level of Confidence
In most cases, it is appropriate to use the factor k=2.
For the Normal distribution, the factor k=2 signifies that the
limits of expanded uncertainty apply when the confidence
level is approximately 95%.
5
U.S. Laboratory Weights & Precision Mass Standards
Weight Classification (ASTM)
Excerpts from the Standard Specification for Laboratory Weights and Precision
Mass Standards:
ASTM E 617
This specification covers various classes of weights and mass standards used in laboratories. Weights used for field standards and commercial measurement are excluded, as NIST Handbook 105-1 and NIST Handbook 44 cover those classes of weights.
Weight Classification and
Selection
Selection of type and class depends upon the application of
the weights. For primary standards, stability and information
about the values of the weights is more important than the
closeness of the values to nominal. Weights to be used with
balances of low precision do not require small tolerances
nor need the choice of materials to be limited to those of
high stability. The suggested application table should serve
as a guide in selecting weights for specific applications.
Type
Weights are divided into two types based upon the design:
Type I
These weights are of one-piece construction and contain no
added adjusting material. They should be specified when
weights are to be used as standards of the highest order
and where maximum stability is required. A precise measurement of density can be made only for one-piece
weights.
Type II
Physical Characteristics
Class 0 must be Type I, one-piece construction, and
classes 1-7 can be either Type I or II depending on the
application. All weights must meet other design requirements for density, hardness, permitted surface area, surface
finish, magnetic properties, corrosion resistance, surface
protection and markings. Class selection depends upon the
degree of stability required. Density limitations are important
in minimizing the effects of air buoyancy in high precision
measurements.
Class
Tolerance limitations are described in Classes 0, 1, 2, 3, 4,
5, 6 and 7 as shown in the weight tolerance tables. Classes
with small numerical designations represent smaller
tolerances. Classes 0, 1 and 2 are used primarily in metric
but are also available in avoirdupois denominations. Classes
3, 4, 5, 6 and 7 include tolerances for metric, avoirdupois
pound, avoirdupois ounce, troy ounce, pennyweight, and
grain weights. Class 1 through 7 tolerances are comparable
to those in the obsolete NIST Circular 547, Section 1, with
the following exception: Class 1 replaces the smaller
tolerances of Classes M and S, while Class 2 replaces the
larger tolerances of Classes M and S.
Weights of this type can be of any appropriate design such
as screw knob, ring, or sealed plug. Adjusting material can
be used as long as it is of a material at least as stable as the
base material and is contained in such a way that it will not
become separated from the weight.
Suggested Applications
Reference standards used for calibrating other weights
High-precision standards for calibration of weights and precision balances
Calibrating weights for balances with small on-scale ranges such as micro balances
Type
Class
I
0, 1, 2, 3, or 4
I or II
0, 1 or 2
I
0
Working standards for calibration and precision analytical work
I or II
2
Built-in weights, high-quality analytical balances
I or II
2
II
3 or 4
I or II
I or II
II
II
2
2
4 or 5
5 or 6
Moderate precision laboratory balances
External weights for balances of moderate precision:
Weights less than or equal to 10 g
Weights greater than 10 g
Dial Scales and Trip Balances
Platform Scales
Reprinted with permission, copyright ASTM.
6
U.S. Field Standard Weight Classification
Specification and Tolerances for Field Standard Weights (NIST Handbook 105-1,
Class F, Revised 1990)
These specifications and tolerances are minimum requirements for standards used primarily to test weighing devices.
Key words: Field standard weights, specifications, test weights, tolerances, weights and measures inspection.
Introduction
Specifications
A Class F field standard weight (after this, called “weight”) is
intended to be used primarily to test commercial weighing
devices for compliance with the requirements of NIST
Handbook 44.1 Class F weights may be used to test most
accuracy Class2 III scales, all scales of Class IIIL or IIII,
and scales not marked with a class designation.
1. Material
A weight shall be verified to be within-tolerance prior to use.
The within-tolerance status of a weight shall be rechecked
as often as regulations or circumstances require, especially
when damage to it is known or suspected.
General
1.1 A weight made of brass or a fabricated weight
(such as a laminated weight or a weight of
nonuniform density) shall not be placed in service
after the publication date of this standard (1990).
1.2 A weight smaller than 5 grams/0.01 lb shall be
constructed of stainless steel, tantalum, nickelchromium alloy, aluminum alloy, or other material
sufficiently resistant to corrosion and oxidation that
the surface need not be protected or coated.
These specifications apply to new weights placed in service
after the publication of this standard; the tolerances apply to
all weights in service.
A weight in service prior to the publication of this standard
that has maintained Class F tolerances between verification
tests shall continue to be acceptable.
The specifications permit the use of a weight at its nominal
value in normal testing operations, where the tolerance on
the item under test is at least three times as great as the
tolerance of the weight.3
1
NIST Handbook 44, Specifications Tolerances, and Other Technical Requirements for Weighing and Measuring Devices.
(See current edition.)
2
See Handbook 44, Section 2, Scales Code.
3
See Handbook 44, Appendix A, par. 3.2.
7
Conversion Factors for Units of Mass
All shaded figures are exact
Units of Mass not greater than
Pounds and Kilograms
UNITS
1 grain
1 apoth.
scruple
1 pennyweight
1 avdp. dram
1 apoth. dram
1 avdp. oz
1 apoth. or
troy ounce
1 apoth. or
troy pound
1 avdp. lb
1 milligram
1 gram
1 kilogram
APOTHECARIES
SCRUPLES
GRAINS
=
1
=
=
=
=
=
20
24
27.343 75
0.05
0.041 666 67
1
1.2
1.367 187 5
60
437.5
AVOIRDUPOIS
DRAMS
PENNYWEIGHTS
0.833 333 3
1
3
21.875
1.139 323
2.5
18.229 17
APOTHECARIES
DRAMS
0.036 571 43
0.016 666 67
0.002 285 714
0.731 428 6
0.877 714 3
0.333 333 3
0.4
0.455 729 2
0.045 714 29
0.054 857 14
0.062 5
0.137 142 9
1
2.194 286
1
16
=
480
24
20
=
=
=
=
=
5760
7000
0.015 432 36
15.432 36
15432.36
288
350
0.000 771 617 9
0.771 617 9
771.617 9
240
291.666 7
0.000 643 014 9
0.643 014 9
643.014 9
AVOIRDUPOIS
OUNCES
7.291 667
17.554 29
210.651 4
256
0.000 564 383 4
0.564 383 4
564.383 4
1
8
96
116.666 7
0.000 257 206 0
0.257 206 0
257.206 0
1.097 143
13.165 71
16
0.000 035 273 96
0.035 273 96
35.273 96
Units of Mass not greater than
Pounds and Kilograms
UNITS
1 grain
=
1 apoth.
scruple
=
1 pennyweight =
1 avdp. dram =
1 apoth. dram =
1 avdp. oz
=
1 apoth. or
troy ounce
=
1 apoth. or
troy pound
=
1 avdp. lb
=
1 milligram
=
1 gram
=
1 kilogram
=
APOTHECARIES
APOTHECARIES
OR TROY OUNCES OR TROY POUNDS
AVOIRDUPOIS
POUNDS
MILLIGRAMS
KILOGRAMS
0.00 173 611 1
0.000 142 857 1
0.041 666 67
0.05
0.056 966 15
0.125
0.911 458 3
0.003 472 22
0.004 166 667
0.004 747 179
0.010 416 67
0.075 954 86
0.002 857 143
0.003 428 571
0.003 906 25
0.008 571 429
0.062 5
1295.978 2
1555.173 84
1771.845 195 312 5
3887.934 6
28 349.523 125
1.295 978 2
1.555 173 84
1.771 845 195 312 5
3.887 934 6
28.349 523 125
0.001 295 978 2
0.001 555 173 84
0.001 771 845 195 312 5
0.003 887 934 6
0.028 349 523 125
0.083 333 333
0.068 571 43
31 103.476 8
31.103 476 8
0.031 103 476 8
1
1.215 278
0.000 002 679 229
0.002 679 229
2.679 229
0.822 857 1
373 241.721 6
453 592.37
373.241 721 6
453.592 37
0.001
0.373 241 721 6
0.453 592 37
0.000 0001
0.001
1
12
14.583 33
0.000 032 150 75
0.032 150 75
32.150 75
64.798 91
GRAMS
0.002 083 333
1
0.000 002 204 623
0.002 204 623
2.204 623
1
1000
1,000,000
0.064 798 91
0.000 064 798 91
1
1000
1
Units of Mass not greater than
Avoirdupois Ounces
UNITS
AVOIRDUPOIS
OUNCES
AVOIRDUPOIS
POUNDS
SHORT HUNDREDWEIGHTS
SHORT TONS
LONG TONS
KILOGRAMS
1 avdp. oz
=
1
0.0625
0.000 625
0.000 031 25
0.000 027 901 79
0.028 349 523 125
1 avdp. lb
=
16
1
0.01
0.000 5
0.000 446 428 6
0.453 592 37
1 short
hundredweight=
1600
100
1
0.05
0.044 642 86
45.359 237
1 short ton
=
32,000
2000
20
1
0.892 857 1
907.184 74
1 long ton
=
35,840
2240
22.4
1.12
1 1016.046 908 8
1kilogram
=
35.273 96
2.204 623
0.022 046 23
0.001 102 311
0.000 984 206 5
1
1 metric ton = 35 273.96
2204.623
22.046 23
1.102 311
0.984 206 5
1000
Based on National Institute of Standards and Technology LC-1071, Factors for High-Precision Conversions, July 1976
METRIC TONS
0.000 028 349 523 125
0.000 453 592 37
0.045 359 237
0.907 184 74
1.016 046 908 8
0.001
1
8
9
Metric Weight Tolerances
INTERNATIONAL ORGANIZATION OF
LEGAL METROLOGY RECOMMENDATIONS
OIML R 111
Denomination
Metric
5000 kg
3000 kg
2000 kg
1000 kg
500 kg
300 kg
200 kg
100 kg
50 kg
30 kg
25 kg
20 kg
10 kg
5 kg
3 kg
2 kg
1 kg
500 g
300 g
200 g
100 g
50 g
30 g
20 g
10 g
5g
3g
2g
1g
500 mg
300 mg
200 mg
100 mg
50 mg
30 mg
20 mg
10 mg
5 mg
3 mg
2 mg
1 mg
E1
E2
mg
mg
F1
mg
F2
mg
M1
mg
M2
mg
ASTM E 617*
M3
mg
25
75
250
750
2500
7500
25,000
10
5
2.5
30
15
7.5
100
50
25
300
150
75
1000
500
250
3000
1500
750
10,000
5000
2500
100
50
25
300
150
75
1000
500
250
10
5
2.5
30
15
7.5
0
1.0
0.5
0.25
3.0
1.5
0.75
0.1
0.05
0.03
0.30
0.15
0.10
1.0
0.5
0.30
3.0
1.5
1.0
10
5
3.0
30
15
10
100
50
30
0.025
0.020
0.015
0.080
0.060
0.050
0.25
0.20
0.15
0.8
0.6
0.5
2.5
2.0
1.5
8
6
5
25
20
15
0.012
0.010
0.008
0.040
0.030
0.025
0.12
0.10
0.08
0.4
0.3
0.25
1.2
1.0
0.8
4
3
2.5
12
10
0.006
0.005
0.004
0.020
0.015
0.012
0.06
0.05
0.04
0.20
0.15
0.12
0.6
0.5
0.4
2
1.5
0.003
0.002
0.002
0.010
0.008
0.006
0.03
0.025
0.020
0.10
0.08
0.06
0.3
0.25
0.20
0.002
0.002
0.006
0.006
0.020
0.020
0.06
0.06
0.20
0.20
mg
63
38
31
25
13
6
3.8
2.5
1.3
0.60
0.38
0.25
0.13
0.060
0.037
0.037
0.025
0.017
0.017
0.017
0.017
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
* Reprinted, with permission from the Annual Book of ASTM Standards, Copyright American Society for Testing and Materials,
100 Barr Harbor Drive, West Conshohocken, PA 19428.
NIST 105-1 Class F Tolerances are based on the 1990 revised tolerance structure used by State Weights & Measures.
ASTM E 617*
1
2
Ind
Ind
mg
mg
125
75
62
50
25
12
7.5
5.0
2.5
1.2
0.75
0.50
0.25
0.12
0.074
0.074
0.050
0.034
0.034
0.034
0.034
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
NIST
HANDBOOKS
105-1
44
250
150
125
100
50
25
15
10
5.0
2.5
1.5
1.0
0.50
0.25
0.15
0.10
0.074
0.054
0.054
0.054
0.054
0.025
0.025
0.025
0.025
0.014
0.014
0.014
0.014
0.014
0.014
0.014
0.014
3
mg
500
300
250
200
100
50
30
20
10
5.0
3.0
2.0
1.0
0.60
0.45
0.35
0.25
0.18
0.15
0.13
0.10
0.080
0.070
0.060
0.050
0.042
0.038
0.035
0.030
0.028
0.026
0.025
0.025
4
5
g & mg
g & mg
100 g
60
40
20
10
6.0
4.0
2.0
1.0
600 mg
500
400
200
100
60
40
20
10
6.0
4.0
2.0
1.2
0.90
0.70
0.50
0.36
0.30
0.26
0.20
0.16
0.14
0.12
0.10
0.085
0.075
0.070
0.060
0.055
0.052
0.050
0.050
250 g
150
100
50
25
15
10
5
2.5
1.5
1.2
1.0
500 mg
250
150
100
50
30
20
15
9
5.6
4.0
3.0
2.0
1.3
0.95
0.75
0.50
0.38
0.30
0.26
0.20
0.16
0.14
0.12
0.10
0.080
0.070
0.060
0.050
6
g & mg
50 g
30
20
10
5
3
2
1
500 mg
300
200
100
50
30
20
10
7
5
3
2
2
2
2
2
1
1
1
1
7
g & mg
750 g
450
300
150
75
45
30
15
7.5
4.5
4.5
3.8
2.2
1.4
1.0
750 mg
470
300
210
160
100
44
33
21
13
9.4
7.0
4.5
3.0
2.2
1.8
1.2
0.88
0.68
0.56
0.4
F
g & mg
500 g
300
200
100
50
30
20
10
5.0
3.0
2.5
2.0
1.0
500 mg
300
200
100
70
60
40
20
10
6.0
4.0
2.0
1.5
1.28
1.12
0.90
0.72
0.61
0.54
0.43
0.35
0.29
0.26
0.21
0.17
0.14
0.12
0.10
Accept
Maint
mg
mg
Denomination
Metric
1500
1000
800
500
400
250
175
150
100
70
40
30
20
15
10
8
6
4
3.0
2.0
1.5
1.0
0.8
0.6
0.4
0.3
0.1
0.1
0.1
0.1
5000 kg
3000 kg
2000 kg
1000 kg
500 kg
300 kg
200 kg
100 kg
50 kg
30 kg
25 kg
20 kg
10 kg
5 kg
3 kg
2 kg
1 kg
500 g
300 g
200 g
100 g
50 g
30 g
20 g
10 g
5g
3g
2g
1g
500 mg
300 mg
200 mg
100 mg
50 mg
30 mg
20 mg
10 mg
5 mg
3 mg
2 mg
1 mg
750
500
400
250
200
125
88
75
50
35
20
15
10
8
5
4
3
2
1.5
1.0
0.8
0.5
0.4
0.3
0.2
0.15
0.05
0.05
0.05
0.05
10
Avoirdupois Weight Tolerances
(Pounds)
(Ounces)
105-1
Denomination
Pound
10,000 lb
5000 lb
3000 lb
2500 lb
2000 lb
1000 lb
500 lb
100 lb
50 lb
40 lb
30 lb
25 lb
20 lb
15 lb
10 lb
9 lb
8 lb
7 lb
6 lb
5 lb
4 lb
3 lb
2 lb
1 lb
0.5 lb
0.3 lb
0.2 lb
0.1 lb
0.05 lb
0.03 lb
0.02 lb
0.01 lb
0.005 lb
0.003 lb
0.002 lb
0.001 lb
0.0005 lb
0.0003 lb
0.0002 lb
0.0001 lb
0.00005 lb
0.00003 lb
0.00002 lb
0.00001 lb
F
g & mg
450 g
230
140
110
91
45
23
4.5
2.3
1.4
1.1
910 mg
450
227
136
91
70
45
27
18
9.1
4.5
2.7
1.8
1.5
1.17
0.99
0.87
0.70
NIST
HANDBOOKS
44
Accept
g & mg
1.6 g
1.5
1.3
1.1
970 mg
910
810
750
680
620
550
490
360
290
230
160
105-1
Maint
g & mg
3.2 g
2.9
2.6
2.3
1.9
1.8
1.6
1.5
1.4
1.2
1.1
970 mg
710
580
450
320
Denomination
Pound
12 oz
10 oz
8 oz
6 oz
5 oz
4 oz
3 oz
2 oz
1 oz
1/2 oz
1/4 oz
1/8 oz
1/16 oz
1/32 oz
1/64 oz
0.5 oz
0.3 oz
0.2 oz
0.1 oz
0.05 oz
0.03 oz
0.02 oz
0.01 oz
0.005 oz
0.003 oz
0.002 oz
0.001 oz
0.0005 oz
0.0003 oz
0.0002 oz
0.0001 oz
F
g & mg
45
23
11
5.4
2.8
1.7
1.3
1.1
0.87
0.69
2.8
1.8
1.6
1.3
1.0
0.85
0.75
0.60
NIST
HANDBOOKS
44
Accept
g & mg
160
130
130
110
110
97
65
65
55
49
32
16
13
9.7
3.2
Maint
g & mg
320
260
260
230
230
194
130
130
110
97
65
32
26
19
6.5
11
Traceability
1 kg
Ind
irec
t
Rice Lake
Weighing
Systems
Dir
ect
1 kg
US
Standard:
NIST
1 kg
Direct
World
Standard:
OIML
1 kg
Customer
What is Traceability?
Traceability is documentation — essentially a pedigree —
showing a direct link to the official U.S. 1 kg weight
standards housed at the National Institute of Standards and
Technology (NIST) in Gaithersburg, MD. These NIST
standards are in turn calibrated to the international 1 kg
standard maintained at the BIPM lab in Sevres, France.
Traceability not only means that a weight or mass standard
has links to the NIST 1 kg standard, but also that the
measurements were appropriate for the accuracy class
required for the application. Traceability also requires proof
that all environmental factors affecting accuracy were
considered at the lab doing the measurement.
There are two types of traceability: direct and indirect.
Direct traceability means a weight or mass standard has
been tested by NIST. NIST then issues a report number to
the organization for whom they have performed measurements. Because the report is valid only for the items tested
by NIST, a calibration lab such as Rice Lake Weighing
Systems must submit its set of mass standards to NIST for
testing. This report provides direct traceability for the lab’s
mass standards, which can then be used in calibrating
weights for clients.
Indirect traceability exists when a client’s weight or mass
standard is tested by a metrology lab that has direct
traceability and has the necessary measurement control
program in place. An important aspect of this measurement
control and testing program is the participation in a NISTcertified measurement assurance program, which reduces
the possibility of errors.
To clarify the two types of traceability, remember that
direct traceability comes directly from NIST. For example,
Rice Lake Weighing Systems’ Calibration Lab has direct
traceability, as shown in the diagram above. The calibrations
we perform for our customers provide indirect traceability.
Likewise, when that customer uses its Rice Lake Weighing
Systems calibrated test weights to calibrate a balance or
scale, it is providing indirect traceability.
When is Traceability Necessary?
■
Federal agencies require measurement traceability to
national standards for contract work.
■
Military contracts invariably require traceability.
■
Pharmaceutical, scientific, and medical products
manufacturers usually specify traceability.
■
ISO-9000 registered companies nearly always require
proof of traceability to the international standard.
12
Accuracy, Traceable and Calibration Certificates
Certificate Of Accuracy
Which Certificate Do I Need?
This certificate states that the mass (weight) has been
compared to a known standard. The standards used must
have traceability to NIST and the certificate will list the report
number, nominal value, description of weight (or kit), serial
number, class and tolerance.
This is one of the most frequently asked questions we hear
at our Mass Metrology Laboratory.
Traceable Certificate
This certificate conforms to ANSI/NCSL Z540-1 and
includes all the necessary information that is required by
the superseded Military Standard Spec 45662A. We
use a modified weighing design, and provide the following
information: nominal and correction values, tolerance for
the specific class, assumed density, and the environmental
conditions present at the time the tests were performed.
Weights that include this certificate are traceable to NIST.
Calibration Certificate
This certificate also conforms to ANSI/NCSL Z540-1 and
the superseded Military Standard Spec 45662A. The
weighing designs used for this calibration are extensive and
consist of repeated comparisons, the same as those used
at the national level (NIST). When these calibrations are
performed, the 4-to-1 uncertainty to tolerance ratio is met
for a weight range of ten kg to one mg, thus giving the most
accurate values of the weights as possible. Weights that
include this certificate are traceable to NIST.
Sometimes the answer is obvious, as when a company has
legal or contractual requirements that mandate a specific
certification. Government contracts may dictate a certificate
to meet certain Military Standard specifications. Often the
need for quality control requirements for ISO-9000 guidelines specify that certain standards be met in their weight
certificates.
In the absence of any programs or guidelines within your
company, the Accuracy Classes for Mass Standards and
Test Weights chart on page 2 can be used as a guide to
define whether a Calibration or Traceable Certificate is
required.
A Certificate of Accuracy is adequate if the actual values
and stated uncertainties of the weights are not necessary,
and only the tolerances of the specific class are needed.
These certificates are normally adequate for weights used
to calibrate industrial balances and scales more than six
kilograms in capacity. The mass standards used by Rice
Lake Weighing Systems are used to verify that those
weights are within the necessary tolerances and are
traceable to NIST. Weights with this certificate do not
meet the requirements needed in legal-for-trade scale
applications.
Traceable vs Calibration Certificate
The major difference between the two is the method in
which the weights are compared to the known standard.
Both certificates give the actual values and uncertainties.
The calibration certificate will, however, give a smaller
uncertainty and a more precise value of the actual mass due
to the multiple measurements that are made during the
calibrating process.
Both the Traceable and Calibration Certificate will include
the following information:
■
Actual mass values or the corrections to the nominal
mass of the weight being calibrated vs. 8 grams/cm3.
■
The uncertainty of the measurement process as it
relates to the item being calibrated.
■
The environmental conditions present during the test.
■
The assumed density of the weight being tested so that
atmospheric buoyancy corrections can be applied.
Legal-for-Trade Weight Applications
NIST Class F weights are required for all legal-for-trade
applications which include any product that is sold by
weight. This would include all retail scales and floor and
truck scales. For these applications we recommend a
traceable certificate, which will give actual values and
uncertainties of the weights. Most State Weights and
Measures Departments require this information as a
minimum to allow weights to be put into field service.
This is usually the same information that the State gives
when they certify weights. Check with your State and
Local Weights and Measures Department for acceptance
of our certifications.
13
How Will a NVLAP-Accredited Calibration Lab Benefit Me?
While the present benefits of using a NVLAP-accredited lab
for your weight calibration services are readily apparent now,
the future benefits—both in the U.S. and abroad—when the
NVLAP program gains widespread approval, will be truly
exciting.
ments of the major European accreditation bodies, so ready
acceptance of calibrations from American NVLAP-accredited labs is expected by the European community.
Acceptance of NVLAP by individual states in the U.S. is
currently under way. If your state recognizes NVLAP
accreditation and grants reciprocity, Rice Lake Weighing
Systems can calibrate and ship certified test weights to any
location in your state.
Rice Lake Weighing Systems is proud to have its new mass
calibration laboratory awarded the NIST/NVLAP recognition
of excellence. Its metrology staff has participated in basic,
intermediate, and advanced NIST/OWM training seminars,
regional metrology groups such as MidMAP, and roundrobin measurement programs with state labs since regional
groups were established in the early 1980’s. Now, with the
NVLAP program in place, Rice Lake Weighing Systems has
demonstrated its ability to meet accreditation requirements
equal to the state calibration labs.
If your state has not granted reciprocity for NVLAP-accredited calibrations, we will continue to send commercial test
weights and mass standards to your local state lab for
certification (or to another state lab with a reciprocity
agreement). You may place your legal-for-trade test weights
into service only after that official lab performs its tests.
For international customers, NVLAP-accredited calibration
validates the traceable link to the BIPM international
standard so often required by ISO-9000 registered
companies.
Check with your state or local Weights and Measures
officials to determine the approval status of legal-for-trade
weights in your state before ordering certification by Rice
Lake Weighing Systems.
In the very near future, the NVLAP program should bring a
measure of reciprocity and universal standardization that the
weights and measures industry has long sought. The
NVLAP standards were tailored to the calibration require-
Rice Lake Weighing Systems’ NVLAP-accredited lab can
certify weights to accuracy echelon I, II, and III, and ship
them directly to customers. See page 2 for typical uses of
these accuracy classes.
1 kg
International
Standard:
BIPM
NVLAP Lab and
Acceptance by State W & M
1 kg
1 kg
No NVLAP Lab and/or
No Acceptance by State W & M
US Standard:
NIST
1 kg
Weight Supplier
Weight Supplier with
NIST/NVLAP-Accredited
Calibration Lab
1 kg
Customer
State Lab
14
NVLAP Traceable Certificate
When a customer requests a Traceable Certificate, he needs
proof of traceability to NIST, actual mass values and uncertainties. Comparisons must be made between the item being
tested and the official standard being used. The laboratory
performing the testing must verify that the proper procedures
and standards are being used so that the uncertainties are
suitable for the test that is required. The known standard and
procedure used for the tolerance test is essential to the
traceable document.
d Traceable To
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tifie
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Cer
MS
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YS
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IFIC
CERT
BLE
nology
Tech
nd
Prior to the comparison between the
known standard and the item
submitted for testing, the known
standard must be sufficiently
tested over time to produce
predictable measurements. Also,
the procedure used to do the
comparison must be accurate
enough so the uncertainty of the
measurement is small enough to
generate a valid report.
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12 The NVLAP official logo will be displayed when the
documentation meets the scope of accreditation
under Lab Code 105001.
1
A reported value without all required parameters
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NVLAP Weight Calibration – Report of Mass Values
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and help maintain lower uncertainties.
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A customer requesting a Weight Calibration Report needing
traceability to NIST, is looking for actual weight readings,
corrections and uncertainty values. To produce this document, a calibration laboratory must maintain a statistical
measurement process acceptable by NIST. Also, depending
on the weight class and the accuracy required, different
standards and procedures need to be incorporated to make
sure the level of uncertainty is appropriate for the item being
tested. A Weight Calibration Report is in compliance with
ANSI/NCSL Z540-1 requirements.
R IC
E LA E
Call toll free 800-357-8627
16
Ordering Traceable and Weight Calibration Certificates
New Weights
Traceable and Weight Calibration Certificates can be purchased with every weight we sell. To order either certificate with your
purchase of a new weight or weight set, you should:
1.
Note on your purchase order to add these services.
2.
Call or fax the order and we will quote you the additional price immediately.
Existing Weights
Your existing weights should be recertified at least once a year, and possibly more often depending upon their use. Our
state-of-the-art metrology lab is equipped to calibrate your existing weights and mass standards and can provide either a
Traceable or Weight Calibration Certificate at your request.
When calibrating existing weights there are many factors that affect the cost: age, design, abuse, required
finish, tolerance and class needed. To accurately estimate the cost of our calibration service, we offer
the following 24-hour response options:
■
Send us the weight and designate which service you would like us to
perform. We will evaluate the weight and phone you with a quote.
■
Photocopy the ISO FASTCAL Rapid Response form
found on the last page of this catalog, or call us
and we will fax you a new form. Simply
complete and return the form and we will
get back to you with an estimate.
■
Call and tell us what weights you have and
what service you need and we will give you
a quote over the phone.
SM
Our normal turnaround time for weight services is two
weeks. If you have a specific date that you need the
weights back, call ahead and schedule an appointment.
Our metrology lab will then schedule your work before we
receive your weights.
Please call 1-800-357-8627 (TMAP) to receive a copy of the
ISO FASTCAL Rapid Response form or to schedule a time for
certification of your weights.
Definitions
ts,
eigh
st W
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T
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a
Prec
For Stand Repair
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Ma ration &
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Cali
1
-917
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(71 234-6
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Traceability: The continuous link between the weights in question and
❑
the World Standard which is kept at BIPM in Sevres, France.
❑
Tolerance: The allowable limits within each class that a mass can deviate
❑
from the nominal value.
❑
Adjustment: The process of changing the mass either by polishing or adding
and subtracting material, to bring the mass within the tolerance of a specified
class.
As Found: The value of the mass recorded by Rice Lake Weighing Systems
after cleaning and before any adjustment based on a density of 8g/cm3 at 20°C.
As Left: The value of the mass after any necessary adjustments are made based
on a density of 8g/cm3 at 20°C.
Calibration: The set of operations that establishes, under specified conditions, the
process of finding the mass value of an unknown through a series of intercomparisons with
known mass standards, by determining the difference between them. An UNCERTAINTY
value must be assigned to the reported mass value of the unknown for a true calibration.
Uncertainty: The parameter of possible deviation associated with the result of a measurement due to any one or all of the following conditions: measuring equipment, environment,
operator technique, and the assumed value of the standards which is a direct result of the
measurements back to the World Standard (TRACEABILITY).
Correction: The deviation from the nominal value based on the true mass or referenced density.
Density: The unit of mass divided by its volume. For a precision calibration, density testing is
required to calculate buoyancy correction.
Buoyancy Correction: The calculation needed to compensate for the varying air density in
order to ascertain the true mass value.
❑
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Prices and specifications subject to change without notice
Call toll free 800-357-8627
64
Cast Iron Test Weights
Piggyback Weights
Avoirdupois and Metric, Class F
AVOIRDUPOIS PIGGYBACK WEIGHTS
WEIGHT
Width**
Length
Height
Slot Width
5000 lb
3"
20 1/4"
20 3/4"
51 1/4"
2"
METRIC PIGGYBACK WEIGHTS
WEIGHT
Width**
Length
Height
Slot Width
2000 kg
45 3/4"
3"
20 3/4"
20 3/4"
Slot Depth*
Part #
List Price
12888 .... $7,350.00
Slot Depth*
2"
Part #
List Price
12821 .... $6,950.00
* Slot Depth refers to the distance between lifting bar and casting.
** Width refers to dimension as viewing the handle or slot
Dimensions may vary.
Non-Legal-For-Trade
Grip Handle Test Weights
Avoirdupois and Metric, sealed to ASTM Class 6 Tolerances
AVOIRDUPOIS GRIP HANDLE
WEIGHT
Width*
Length
Height
Part #
1 lb
2 lb
5 lb
10 lb
1 5/8"
2 1/8"
2 1/2"
3 1/4"
1 1/4"
1 5/8"
3"
4"
12876 ...................... $25.00
12874 ...................... $35.00
12823 ...................... $36.00
12828 ...................... $42.00
METRIC GRIP HANDLE
WEIGHT
Width*
Length
Height
Part #
500 g
1 kg
2 kg
5 kg
1 5/8"
2 1/8"
2 1/2"
3 1/4"
1 3/8"
1 3/4"
2 3/4"
3 7/8"
12815 ...................... $25.00
12813 ...................... $35.00
12809 ...................... $38.00
12786 ...................... $47.00
2 1/2"
3"
4"
5"
2 1/2"
3"
4"
5 3/8"
List Price
List Price
* Width refers to dimension as viewing the handle or slot
Prices and specifications subject to change without notice
Call toll free 800-357-8627
65
Interlocking Weights and Hangers
Non-Legal-For-Trade
Slotted Interlocking Weights
Avoirdupois and Metric, sealed to ASTM Class 6 Tolerances
AVOIRDUPOIS INTERLOCKING WEIGHTS
WEIGHT
Slot Width
Diameter
Height
Part #
1/2 lb
1 lb
2 lb
5 lb
10 lb
20 lb
50 lb
100 lb*
7/16"
7/16"
3/4"
1 1/4"
1 9/16"
1 7/8"
2 1/2"
1 15/16"
12837 ...................... $26.00
12842 ...................... $31.00
12848 ...................... $35.00
12852 ...................... $43.00
12826 ...................... $51.00
12831 ...................... $57.00
12856 .................... $106.00
40828 .................... $335.00
METRIC INTERLOCKING WEIGHTS
WEIGHT
Slot Width
Diameter
Height
Part #
200 g
500 g
1 kg
2 kg
5 kg
10 kg
20 kg
5/16"
1/2"
3/4"
1 5/32"
1 25/32"
2"
2 5/16"
12780 ...................... $26.00
12791 ...................... $37.00
12795 ...................... $39.00
12799 ...................... $41.00
12807 ...................... $61.00
12811 ...................... $78.00
12819 .................... $105.00
9/16"
9/16"
9/16"
9/16"
3/4"
3/4"
9/16"
1"
9/16"
9/16"
9/16"
9/16"
3/4"
3/4"
9/16"
3 3/4"
5"
5"
5 1/8"
6 1/8"
8 1/8"
10 1/2"
17"
3 3/4"
5"
5 1/16"
5 1/8"
6 5/32"
8 3/16"
10 13/32"
List Price
List Price
* Features built-in lifting handles
Hangers
Avoirdupois and Metric Slotted Interlocking Weights, sealed to ASTM Class 6 Tolerances
AVOIRDUPOIS HANGERS
WEIGHT
Capacity
Total Length
Operational Length
Diameter
Part #
1 lb
1 lb
2 lb
2 lb
5 lb
9 1/2"
22"
10 1/4"
21 3/8"
37 1/4"
8"
20 5/16"
8"
19"
35"
3 11/16"
3 11/16"
3 13/16"
3 13/16"
5"
12825 .................. $65.00
12830 .................. $76.00
12835 .................. $87.00
12841 .................. $98.00
12846 ................ $174.00
METRIC HANGERS
WEIGHT
Capacity
Total Length
Operational Length
Diameter
Part #
500 g
500 g
1 kg
1 kg
2 kg
9 1/2"
22"
10 1/4"
21 3/8"
37 1/4"
8"
20 5/16"
8"
19"
35"
3 11/16"
3 11/16"
3 13/16"
3 13/16"
5"
12769 .................. $65.00
12773 .................. $76.00
12777 .................. $87.00
12784 .................. $98.00
12788 ................ $174.00
200 lb
200 lb
200 lb
200 lb
500 lb
100 kg
100 kg
100 kg
100 kg
250 kg
Prices and specifications subject to change without notice
List Price
List Price
Call toll free 800-357-8627
66
Counterpoise Weights and Hangers
Class 7 counterpoise weights for beam scales
Fairbanks Round Slotted Interlocking
For portable platform, overhead track, warehouse and floor scales
AVOIRDUPOIS
Ratio
WEIGHT
1 lb to
100 lb
1/2 lb to
100 lb
Diameter
Fairbanks #
Part #
50 lb x 1/2 lb
100 lb x 1 lb
200 lb x 2 lb
500 lb x 5 lb
2 29/32"
4 3/32"
4 5/32"
3 29/32"
PA48
PA32
PA21
PB52
10154 ........................... $12.00
10156 ........................... $13.00
10158 ........................... $15.00
10160 ........................... $17.00
List Price
100 lb x 1/2 lb
200 lb x 1 lb
300 lb x 1 1/2 lb
500 lb x 2 1/2 lb
1000 lb x 5 lb
2 29/32"
3 17/32"
3 17/32"
3 17/32"
3 29/32"
PBC32
PBC21
N/A
PBC52
N/A
10152 ........................... $12.00
10168 ........................... $13.00
10189 ........................... $14.00
10170 ........................... $16.00
10196 ........................... $22.00
Size
Fairbanks #
Part #
2 3/8"
3 7/16"
3 13/32"
3 9/16"
1A2349
1A1469
1A1470
1A1471
10191 ........................... $13.00
10162 ........................... $13.00
10164 ........................... $15.00
10166 ........................... $18.00
Fairbanks Square Slotted Interlocking
For Fairbanks code 1124-A and Hobart
AVOIRDUPOIS
Ratio
WEIGHT
1 lb to
100 lb
50 lb x 1/2 lb
100 lb x 1 lb
200 lb x 2 lb
500 lb x 5 lb
List Price
Fairbanks Hexagon Metric
These weights will stack on Fairbanks Round Counterpoise Hangers
METRIC
WEIGHT
Size
Part #
10 kg x 100 g
25 kg x 250 g
50 kg x 500 g
100 kg x 1 kg
200 kg x 2 kg
2 1/16"
3 1/4"
4"
4"
4 1/32"
10266
10268
10270
10272
10274
List Price
.......................
.......................
.......................
.......................
.......................
$12.00
$15.00
$16.00
$20.00
$22.00
Fairbanks Counterpoise Hangers
For portable platform, overhead track, warehouse and floor scales
ROUND
APPROX.
WEIGHT
Diameter
Height
Part #
7 oz
10 oz
12 oz
17 oz
21 oz
3 31/32"
3 31/32"
3 31/32"
3 31/32"
3 31/32"
6 5/16"
6 5/16"
6 5/16"
6 5/16"
6 5/16"
10188 ........................ $26.00
10184 ........................ $26.00
10185 ........................ $26.00
10186 ........................ $26.00
10187 ........................ $26.00
SQUARE
APPROX.
WEIGHT
Diameter
Height
Part #
8"
10193 ........................ $26.00
21 oz
List Price
List Price
Prices and specifications subject to change without notice
Call toll free 800-357-8627
67
Counterpoise Weights and Hangers
Detecto Round Slotted Interlocking
For portable platform, overhead track, warehouse and floor scales
AVOIRDUPOIS
Ratio
1 lb to
100 lb
1/2 lb to
100 lb
WEIGHT
Diameter
Part #
50 lb x 1/2 lb
100 lb x 1 lb
200 lb x 2 lb
500 lb x 5 lb
2 29/32"
4 3/32"
4 5/32"
3 29/32"
10154 ......................... $12.00
10156 ......................... $13.00
10158 ......................... $15.00
10160 ......................... $17.00
List Price
100 lb x 1/2 lb
200 lb x 1 lb
300 lb x 1 1/2 lb
500 lb x 2 1/2 lb
1000 lb x 5 lb
2 29/32"
3 17/32"
3 17/32"
3 17/32"
3 29/32"
10152 ......................... $12.00
10168 ......................... $13.00
10189 ......................... $14.00
10170 ......................... $16.00
10196 ......................... $22.00
Detecto Square Slotted Interlocking
For Detecto and Hobart
AVOIRDUPOIS
Ratio
1 lb to
100 lb
WEIGHT
Size
Part #
50 lb x 1/2 lb
100 lb x 1 lb
200 lb x 2 lb
500 lb x 5 lb
2 3/8"
3 7/16"
3 13/32"
3 9/16"
10191 ......................... $13.00
10162 ......................... $13.00
10164 ......................... $15.00
10166 ......................... $18.00
Detecto Hexagon Metric
These weights will stack on Fairbanks Round Counterpoise Hangers
METRIC
WEIGHT
Size
Part #
10 kg x 100 g
25 kg x 250 g
50 kg x 500 g
100 kg x 1 kg
200 kg x 2 kg
2 1/16"
3 1/4"
4"
4"
4 1/32"
10266
10268
10270
10272
10274
List Price
.........................
.........................
.........................
.........................
.........................
$12.00
$15.00
$16.00
$20.00
$22.00
Detecto Counterpoise Hangers
AVOIRDUPOIS ROUND
APPROX.
WEIGHT
Diameter
Height
Part #
7 oz
12 oz
17 oz
21 oz
6 5/16"
6 5/16"
6 5/16"
6 5/16"
10188
10185
10186
10187
AVOIRDUPOIS SQUARE
APPROX.
WEIGHT
Diameter
Height
Part #
21 oz
8"
10193 ...................... $26.00
4"
4"
4"
4"
Prices and specifications subject to change without notice
List Price
......................
......................
......................
......................
$26.00
$26.00
$26.00
$26.00
List Price
List Price
Call toll free 800-357-8627
68
Counterpoise Weights and Hangers
Howe Round Slotted Interlocking
For Howe 57 - 54 XL, 5400 and Triner
AVOIRDUPOIS
WEIGHT
Diameter
Howe #
Part #
50 lb x 1/2 lb
100 lb x 1 lb
200 lb x 2 lb
300 lb x 3 lb
500 lb x 5 lb
2 31/32"
2 31/32"
2 31/32"
3 3/32"
3 7/32"
42071831
42076188
42076189
42076190
42078947
10367 .......................... $12.00
10369 .......................... $13.00
10371 .......................... $14.00
10373 .......................... $17.00
10385 .......................... $22.00
For Counting Scales
100 lb x 1 1/99 lb 3"
200 lb x 2 2/99 lb 3"
500 lb x 5 5/99 lb 3 3/126"
40810545
40810546
42111567
10387 .......................... $14.00
10389 .......................... $14.00
10391 .......................... $22.00
2 15/16"
2 15/16"
2"
3"
2 7/8"
2 31/32"
2"
1 1/2"
2 7/32"
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
10427 .......................... $23.00
10425 .......................... $23.00
10423 .......................... $23.00
10421 .......................... $23.00
10419 .......................... $23.00
10417 .......................... $23.00
10415 .......................... $23.00
10413 .......................... $23.00
10411 .......................... $23.00
3 1/16"
42111417
10409 .......................... $23.00
2 15/16"
40807082
10407 .......................... $23.00
2 31/32"
40807092
10405 .......................... $23.00
1 1/2"
42111454
10404 .......................... $23.00
AVOIRDUPOIS ROUND
APPROX.
WEIGHT
Diameter
Height
Howe #
Part #
7 oz
10 oz
12 oz
16 oz
H642C7OZ
H642C10OZ
H642C12OZ
H642C16OZ
10382 .......................... $26.00
10379 .......................... $26.00
10380 .......................... $26.00
10381 .......................... $26.00
10 lb x 1 1/4 lb
5 lb x 5/8 lb
1 lb x 1/8 lb
80 lb x 1 3/5 lb
40 lb x 4/5 lb
20 lb x 2/5 lb
10 lb x 1/5 lb
5 lb x 1/10 lb
2 lb x 1/4 lb
100 lb x 1 9/16 lb
or 25 oz
50 lb x 25/32 lb
or 12 1/2 oz
25 lb x 25/64 lb
or 6 1/4 oz
10 lb x 5/32 lb
or 2 1/2 oz
List Price
Howe Counterpoise Hangers
For XL and Apache 54 and 57
2 31/32"
2 31/32"
2 31/32"
2 31/32"
8 3/8"
8 3/8"
8 3/8"
8 3/8"
List Price
Toledo Triangle
AVOIRDUPOIS
APPROX.
WEIGHT
Toledo #
Part #
100 lb x 1 lb
200 lb x 2 lb
500 lb x 5 lb
11417 ............. $13.00
11419 ............. $17.00
11421 ............. $32.00
49868
49869
49870
List Price
Toledo Counterpoise Hanger
AVOIRDUPOIS TRIANGLE
APPROX.
WEIGHT
Height
Toledo #
Part #
14 oz
11423 ...................... $32.00
6 5/16"
49857
List Price
Prices and specifications subject to change without notice
Call toll free 800-357-8627
69
Accessories
Transfer Cart
Designed for use on smooth, level surfaces—especially for moving 500 lb or
1000 lb heavy-capacity weights. Cart can be sealed to a specified weight.
TRANSFER CART
Width
Handle Length
Height
Part #
36 1/2"
29"
11700 ............. $875.00
74 1/2"
List Price
Transfer Cart
Designed for use on smooth, level surfaces—for holding up to twenty 50 lb
grip handle weights. Cart can be sealed to a specified weight.
TRANSFER CART
Width
Handle Length
Height
Part #
25"
17"
11702 ............. $706.00
27"
List Price
Canvas Dust Cover
Dirt can change precision weight readings. When ordering, be sure to specify weight size for proper fit.
CANVAS DUST COVER
Our Weight Part #
Part #
List Price
Our Weight Part #
Part #
List Price
100 lb (12862)
200 lb (12890)
250 lb (12892)
500 lb (12844)
750 lb (12880)
1000 lb (12850)
1250 lb (12858)
1500 lb (12864)
2000 lb (12866)
2000 lb (12868)
2500 lb (12854)
$70.00
$70.00
$70.00
$70.00
$70.00
$70.00
$70.00
$70.00
$125.00
$125.00
$125.00
2500 lb (12860)
3000 lb (12872)
5000 lb (12888)
25 kg (12775)
50 kg (12803)
100 kg (12817)
200 kg (12793)
250 kg (12782)
500 kg (12797)
1000 kg (12801)
2000 kg (12821)
11732 (slab)
11733
11735
11736
11737
11738
11739
11740
11741
11742
11743
$125.00
$125.00
$150.00
$60.00
$60.00
$60.00
$70.00
$70.00
$70.00
$125.00
$150.00
11719
11720
11721
11722
11723
11724
11727
11728
11729
11730
11731
Call for pricing
Prices and specifications subject to change without notice
70
Equipment Return Information
Standard Catalog Equipment:
At Rice Lake Weighing Systems, we want you to be completely satisfied with any product purchased from us. If it does not work, or is not
right, return it for full credit or replacement within 30 days of shipment.
We may, at our option, assess a restocking charge if the equipment was:
1. Not correctly specified for the application intended, and/or
2. Damaged beyond reasonable recovery.
The restocking charge is directly proportional to the amount of time and material expense required by us to return the item to
resalable condition. If an item was held or in use in excess of 30 days, a restocking charge, not to exceed 10%, will be assessed.
Special Order, Modified, Non-Catalog, Unusual or Non-Stock Items:
We will repair or replace, at our option, equipment which is defective by nature of poor quality materials or substandard workmanship, within the specified warranty period. No returns will be accepted for any special order equipment, or for equipment physically
modified or altered in the field.
Return Procedure:
When returning equipment for repairs or warranty reimbursement, these simple steps will help expedite your request:
1. Call (715) 234-9171, extension 348, and ask for a return coordinator. You will then be issued a return authorization
number.
2. When preparing equipment for return shipment, complete a Return Authorization (RA) form and provide a description of the
problem you are experiencing. Be sure to include the Return Authorization number we provided and enclose the form with
the shipment. For additional forms, ask the return coordinator to send you a supply.
3. Please write the Return Authorization number on the outside of the package to help us speed your package through our
receiving process.
Limited Warranty
Seller warrants that the products contained in this catalog will conform to written specifications, drawings, and other descriptions
made by the manufacturer, including any modification thereof. The Seller warrants the goods against faulty workmanship and
defective materials. If any goods fail to conform to these warranties, Seller will, as its sole and exclusive liability hereunder, repair or
replace such goods if they are returned within the following warranty period:
Twelve (12) months from date of shipment from manufacturer for test weight products.
These warranties are made upon the express condition that:
i)
Rice Lake Weighing Systems is given prompt written notice upon discovery by Buyer of such nonconformity, with a
detailed explanation of the alleged deficiencies;
ii)
Such goods are returned to the Seller at the expense of the Buyer;
iii) Examination of such goods by Seller discloses that the nonconformity actually exists and was not caused by accident,
misuse, neglect, alteration, improper installation, improper or unauthorized repair, or improper testing, and
iv) Such goods have not been modified, altered, or changed by any person other than the Seller or its duly authorized repair
agents.
Rice Lake Weighing Systems will have a reasonable time to repair or replace such goods.
THESE WARRANTIES EXCLUDE ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, ORAL OR WRITTEN, INCLUDING WITHOUT LIMITATION WARRANTIES OF MERCHANTABILITY AND OR FITNESS FOR A PARTICULAR PURPOSE. SELLER WILL NOT IN ANY EVENT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES.
IN ACCEPTING THIS WARRANTY, THE PURCHASER OR BUYER AGREES TO WAIVE ANY AND ALL OTHER CLAIM
OR RIGHT TO WARRANTY, OR IF SUCH BE THE CASE, ANY CLAIM OF WARRANTY FROM RICE LAKE WEIGHING
SYSTEMS, INCORPORATED. SHOULD THE SELLER BE OTHER THAN RICE LAKE WEIGHING SYSTEMS,
INCORPORATED, THE BUYER AGREES TO LOOK ONLY TO THE SELLER FOR ITS WARRANTY CLAIM OR CLAIMS.
No terms, conditions, understanding, or agreements purporting to modify the terms of this warranty shall have any legal effect
unless made in writing and signed by a corporate officer of the Seller.
For your convenience,
we’ve included a
copy of our ISO FastCal form
for your use (next page).
Please print as many copies
as you would like and fax a
completed form back to us to
take advantage of our
SM
Exclusive
RAPID RESPONSE
Service
SM
PHONE : (715) 234-9171
FAX : (715) 234-6967
For Precision Test Weights,
Mass Standards,
Calibration & Repair
CUSTOMER INFORMATION
COMPANY NAME: _______________________________________
SHIP TO: _______________________________________________
CUSTOMER #: __________________________________________
_______________________________________________________
ADDRESS: ______________________________________________
_______________________________________________________
CITY: _________________________ STATE: ______ ZIP: _______
_______________________________________________________
COUNTRY: _____________________________________________
_______________________________________________________
TECHNICAL CONTACTS: _________________________________
PHONE: _____________________ FAX: ______________________
AVAILABLE SERVICES
1. ISO Traceability Certifications Available:
❑
❑
6. Standard weight kits consist of 5-3-2-1 or 5-2-2-1 combinations.
If not a standard weight kit, please list all individual weights below:
NVLAP* Traceable Certificate
NVLAP* Calibration Certificate
(Both NVLAP certificates conform to MIL STD 45662A which has been superceded
by ANSI/NCSL Z540-1)
2. Specify name to be printed on Certificate:
__________________________________________________________
Send Certificate to (If different than above):_____________________
__________________________________________________________
__________________________________________________________
___________________________________________________________
___________________________________________________________
___________________________________________________________
___________________________________________________________
___________________________________________________________
___________________________________________________________
___________________________________________________________
7. Is the kit serialized?
❑
❑
Yes
No
Are the individual weights serialized?
3. Weight Class:
NIST ____________
ASTM ___________
❑
❑
❑
❑
Stainless Steel ______________
Brass _____________________
❑
Yes
❑
No
(Note: Certain sizes of weights and polished weights cannot be serialized)
❑
❑
❑
❑
Cast _________________
Other: ________________
Serialize kit only
Serialize weight(s) only
❑
❑
Serialize kit and weights
No serial number required
(Add $7.50 per serial number issued)
8. Has this item(s) been exposed to hazardous contamination?
❑
Yes
❑
No
If yes, send documentation that proves items have been
decontaminated.
5. Are these weights in a self-contained kit?
❑
Yes
If NO, specify service(s) required:
OIML ____________
Other: ___________
4. Specify material and density:
❑
❑
❑
(Serial numbers are required for MIL STD.)
No
If yes, what range? _________________________________________
Part #, if applicable: ________________________________________
Number of weights in kit: ____________________________________
9. Notes or special instructions:
___________________________________________________________
___________________________________________________________
___________________________________________________________
___________________________________________________________
QUOTATION FOR SERVICES SPECIFIED ABOVE
BY: __________________________________________________
EXT.#: _______________________________________________
PRICE ESTIMATE: $ ____________________________________
SHIP DATE: __________________________________________
CUSTOMER AUTHORIZATION TO PROCEED
NOTE:Estimate is based on the ability of the weights to be calibrated and/or certified as requested above.
If weights cannot be calibrated or certified and additional work is needed, I authorize Rice Lake Weighing
Systems to (check appropriate option):
❑
❑
Finish the work order and bill for any additional new weights and services. (All unusable, out-of-tolerance weights will be returned.)
❑
Stop the work order, return the weights, and bill us for actual time incurred.
Interrupt the work order, develop a new estimate, and request authorization to proceed. (This option delays weights beyond
promised delivery date and adds $50.00 to the total work order.)
YOUR PURCHASE ORDER #: _____________________________
BY: ____________________________________________________
TITLE: __________________________________________________
RICE LAKE WEIGHING SYSTEMS
0300 - Rev 4 12/96
METROLOGICAL PRODUCTS & SERVICES GROUP
* Accredited by the National Laboratory Accreditation Program
for the specific scope of accreditation under Lab Code 105001