ASTM E617-13
(Specification)Standard Specification for Laboratory Weights and Precision Mass Standards
Standard Specification for Laboratory Weights and Precision Mass Standards
ABSTRACT
This specification covers laboratory weights and precision mass standards including their principal physical characteristics and metrological requirements. Maximum permissible error, magnetic property, density, and surface roughness for each weight shall be within the limits indicated in this specification. Physical characteristics shall be based on construction, design, surface area, materials, magnetism, density, surface finish, weight adjustment, and marking.
SCOPE
1.1 This specification covers weights and mass standards used in laboratories, specifically classes 000, 00, 0, 1, 2, 3, 4, 5, 6 and 7. This specification replaces National Bureau of Standards Circular 547, Section 1, which is out of print.
1.2 This specification contains the principal physical characteristics and metrological requirements for weights that are used.
1.2.1 For the verification of weighing instruments;
1.2.2 For the calibration of weights of a lower class of accuracy; and
1.2.3 With weighing instruments.
1.3 Maximum Permissible Errors (formerly tolerances) and design restrictions for each class are described in order that both individual weights or sets of weights can be chosen for appropriate applications.
1.4 The values stated in SI units are to be regarded as standard.
1.5 Weight manufacturers must be able to provide evidence that all new weights comply with specifications in this standard (e.g., material, density, magnetism, surface finish, mass values, uncertainties). Statements of compliance by calibration laboratories during subsequent calibrations must meet the requirements of ISO/IEC 17025, 5.10.4.2 and indicate on the calibration report which sections have or have not been assessed.
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Designation:E617 −13
Standard Specification for
1
Laboratory Weights and Precision Mass Standards
This standard is issued under the fixed designation E617; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope NIST SP 811 Guide for the Use of the International System
of Unit (SI) 2008 Edition
1.1 This specification covers weights and mass standards
NIST SP 1038 The International System of Units (SI) –
used in laboratories, specifically classes 000, 00, 0, 1, 2, 3, 4,
Conversion Factors for General Use (May 2006)
5, 6 and 7. This specification replaces National Bureau of
NISTIR 5672 Advanced Mass Calibration and Measurement
Standards Circular 547, Section 1, which is out of print.
Assurance Program for State Calibration Laboratories
1.2 This specification contains the principal physical char-
(2012)
acteristics and metrological requirements for weights that are
NISTIR 6969 Selected Laboratory and Measurement Prac-
used.
tices to Support Basic Mass Calibrations (2012)
1.2.1 For the verification of weighing instruments;
NISTTechnical Note 1297 (1994) Guidelines for Evaluating
1.2.2 For the calibration of weights of a lower class of
and Expressing the Uncertainty of NIST Measurement
accuracy; and
Results
1.2.3 With weighing instruments.
4
2.3 OIML Standards:
1.3 Maximum Permissible Errors (formerly tolerances) and
OIMLD28 ConventionalValueoftheResultofWeighingin
design restrictions for each class are described in order that
Air (2004)
both individual weights or sets of weights can be chosen for
OIML R111–1e04 Weights of classes E1, E2, F1, F2, M1,
appropriate applications.
M1–2, M2, M2–3 and M3 Part 1: Metrological and
Technical Requirements (2004)
1.4 The values stated in SI units are to be regarded as
standard.
2.4 BIPM Standards:
VIM: JCGM 200:2012 International Vocabulary of Metrolo-
1.5 Weight manufacturers must be able to provide evidence
gy–Basic and General Concepts and Associated Terms
thatallnewweightscomplywithspecificationsinthisstandard
GUM: JCGM 100:2008 Evaluation of Measurement
(e.g., material, density, magnetism, surface finish, mass values,
Data–Guide to the Expression of Uncertainty in Measure-
uncertainties). Statements of compliance by calibration labo-
ratories during subsequent calibrations must meet the require- ment
ments of ISO/IEC 17025, 5.10.4.2 and indicate on the calibra-
2.5 EURAMET Standards:
tion report which sections have or have not been assessed.
EURAMET/cg-18/V. 3.0 Guidelines on the Calibration of
Non-Automatic Weighing Intruments (2011)
2. Referenced Documents
2.6 Additional Reference Documents:
2
2.1 ISO Standards:
CIPM-2007 Revised Formula for the Density of Moist Air,
ISO/IEC 17025 General Requirements for the Competence
A. Picard, R. S. Davis, M. Glaser, and K. Fujii
of Testing and Calibration Laboratories (2005)
3
2.2 NIST Standards:
3. Terminology
NIST Handbook 143 State Weights and Measures Laborato-
ries Program Handbook (2007) 3.1 Definitions of Terms Specific to This Standard:
3.1.1 accuracy class of weights—a class of weights that
meets certain metrological requirements intended to keep the
1
This specification is under the jurisdiction of ASTM Committee E41 on
errors within specified limits.
Laboratory Apparatusand is the direct responsibility of Subcommittee E41.06 on
Weighing Devices.
3.1.2 balance—instument indicating apparent mass that is
CurrenteditionapprovedMay1,2013.PublishedJuly2013.Originallyapproved
sensitive to the following forces:
in 1978. Last previous edition approved in 2008 as E617 – 97 (2008). DOI:
10.1520/E0617-13.
2
Available from International Organization for Standardization (ISO), 1, ch. de
la Voie-Creuse, CP 56, CH-1211 Geneva 20, Switzerland, http://www.iso.org.
3 4
Available from National Institute of Standards and Technology (NIST), 100 Available from Organisation Internationale de Metrologie Legale, 11 Rue
Bureau Dr., Stop 1070, Gaithersburg, MD 20899-1070, http://www.nist.gov. Turgot, 75009 Paris, France.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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E617−13
3.1.8.2 (permanent) magnetization (M)—parameter that
Force due to gravity
F 5 m·g
g
specifiesamagneticstateofmaterialbodiessuchasweights,in
the absense of an external magnetic field (most generally,
Air buoyancy equal to the weight of
m
the displaced air.
magnetization is a vecotr whose magnitude and direction are
F 5 v·ρ ·g 5 ρ ·g
b a a
ρ
not necessarily constant within the material). The magnetiza-
Vertical component of the magnetic tion of a body ge
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: E617 − 97 (Reapproved 2008) E617 − 13
Standard Specification for
1
Laboratory Weights and Precision Mass Standards
This standard is issued under the fixed designation E617; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This specification covers weights and mass standards used in laboratories, specifically classes 000, 00, 0, 1, 2, 3, 4, 5, 6 and
7. This specification replaces National Bureau of Standards Circular 547, Section 1,1, which is out of print.
1.2 This specification further recognizes that International Recommendation R111 exists, that describes classes E1, E2, F1, F2,
M1, M2 and M3. Users may choose to reference either R111 or this specification, depending on requirements.
1.2 This specification contains the principal physical characteristics and metrological requirements for weights that are used.
1.2.1 For the verification of weighing instruments;
1.2.2 For the verificationcalibration of weights of a lower class of accuracy; and
1.2.3 With weighing instruments.
1.3 Tolerances Maximum Permissible Errors (formerly tolerances) and design restrictions for each class are described in order
that both individual weights or sets of weights can be chosen for appropriate applications.
1.4 The values stated in SI units are to be regarded as the standard.
1.5 Weight manufacturers must be able to provide evidence that all new weights comply with specifications in this standard
(e.g., material, density, magnetism, surface finish, mass values, uncertainties). Statements of compliance by calibration laboratories
during subsequent calibrations must meet the requirements of ISO/IEC 17025, 5.10.4.2 and indicate on the calibration report which
sections have or have not been assessed.
2. Referenced Documents
2.1 ANSI Standard:
2
B 46.1-1995 Surface Texture (Surface Roughness, Waviness, and Lay) an American National Standard
2
2.1 ISO Standards:
International Vocabulary of Basic and General Terms in Metrology 1993, VIM,ISO/IEC 17025 Geneve, SwitzerlandGeneral
Requirements for the Competence of Testing and Calibration Laboratories (2005)
2
Guide to the Expression of Uncertainty in Measurement
ISO/DIS 4287-1, Edition 01-Jun-95, Geometric Product Specification (GPS), Determination of Surface Texture by Profiling
2
Methods, Part 1: Terms, Definitions and Parameters
1
This specification is under the jurisdiction of ASTM Committee E41 on Laboratory Apparatusand is the direct responsibility of Subcommittee E41.06 on Weighing
Devices.
Current edition approved Dec. 1, 2008May 1, 2013. Published February 2009July 2013. Originally approved in 1978. Last previous edition approved in 20032008 as
E617 – 97 (2003).(2008). DOI: 10.1520/E0617-97R08.10.1520/E0617-13.
2
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.International Organization for
Standardization (ISO), 1, ch. de la Voie-Creuse, CP 56, CH-1211 Geneva 20, Switzerland, http://www.iso.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
E617 − 13
2.3 NCSL Standards:
3
NCSL Glossary of Metrology—Related Terms
3
NCSL Recommended Practice-12 Determining and Reporting Measurement Uncertainties
ANSI/NCSL-Z540-1-1994 American National Standard for Calibration-Calibration Laboratories and Measuring and Test
3
Equipment General Requirements
3
2.2 NIST Standards:
NIST NVLAP Draft Handbook 150-2143 National Voluntary Laboratory Accreditation Program Calibration Laboratories
Technical GuideState Weights and Measures Laboratories Program Handbook (2007)
NIST SP 811 Guide for the Use of the International System of Unit (SI) 2008 Edition
NIST NVLAP Handbook 150SP 1038 National Voluntary Laboratory Accreditation Program (NVLAP), NIST Handbook 150,
Procedures and General RequirementsThe International System of Units (SI) – Conversion Factors for General Use (May
2006)
NISTIR 5672 Advanced Mass Calibration and Measurement Assurance Program for State Calibration Laboratories (2012)
NISTIR 6969 Selected Laboratory and Measurement Practices to Support Basic Mass Calibrations (2012)
NIST Technical Note 1297 (1994) Guidelines for Evaluating and Expressing the Uncertainty of NIST Measurement Re
...
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