ASTM E Standard Specification for. Laboratory Weights and Precision Mass. Standards. Industry & Laboratory Standard. OIML R Metrological &. ASTM E Tolerances have been converted from avoirdupois to metric and rounded to two significant figures. Nominal Size. Class 0. Class 1. Class 2. services. The weight portfolio covers both OIML and ASTM weights from ASTM weights are available in classes 1 – 6 matching requirements of ASTM E
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Maximum permissible error, magnetic property, density, and surface roughness for each weight shall be within the limits indicated in this specification. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Weights used for commercial measurements are excluded, except that one class of standards designed atsm the calibration of commercial test weights is included. Where appropriate, it is recommended that these International Recommendations be used. This specification covers laboratory weights and precision mass standards including their principal physical characteristics and metrological requirements.
Physical characteristics shall be based on construction, design, surface area, materials, magnetism, density, surface finish, weight adjustment, and marking.
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 see Note.
Active view current version of standard. Work Item s – proposed revisions of this standard.
Work Item s – proposed revisions of this standard. Link to Active E6177 link will always route to the current Active version of the standard. Historical Version s – view previous versions of standard.
This abstract is a brief summary of the referenced standard. It is anticipated that as metrication, even in test laboratories, proceeds further, the nonmetric tables given in this specification will become obsolete.
Note-Although metric weights are almost exclusively used in laboratories, tolerances are given in this specification for nonmetric weights in U.
ASTM does not sstm any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date. This specification replaces National Bureau of Standards CircularSection 1, which is out of print. Historical Version s – view previous versions of standard Work Item s – proposed revisions of this standard Translated Version s: It is informational only and not an official part of the standard; the full text of the standard itself must be referred r617 for its use and application.
ASTM E – 97() Standard Specification for Laboratory Weights And Precision Mass Standards
In general, this specification replaces, in function, National Bureau atm Standards CircularSection 1, which is out of print. Link to Active This link will always route to the current Active version of the standard.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.