ASTM E 319 : 1985 : R2014
Current
The latest, up-to-date edition.
Standard Practice for the Evaluation of Single-Pan Mechanical Balances (Withdrawn 2021)
Hardcopy , PDF
English
25-11-2014
Important note : Users cannot be edited or removed once added to your Multi user PDF.CONTAINED IN VOL. 14.04, 2015 Defines testing procedures for evaluating the performance of single-arm balances required by ASTM standards.
| Committee |
E 41
|
| DocumentType |
Standard Practice
|
| Pages |
9
|
| ProductNote |
Reconfirmed 2014
|
| PublisherName |
American Society for Testing and Materials
|
| Status |
Current
|
| SupersededBy | |
| Supersedes |
1.1This practice covers testing procedures for evaluating the performance of single-arm balances required by ASTM standards.
1.2This practice is intended for but not limited to sensitivity ratios of 106 or better and on-scale ranges of 1000xd or more where d = reability either directly or by estimation.
1.3This practice can also be applied to other single-pan balances with mechanical weight changing of different capacities or sensitivities with appropriate test loads and calibration weights.
Note 1:Mechanical balances of this type have largely been replaced by automatic electronic balances incorporating a variety of operational principles. Nevertheless, some single-pan mechanical balances are still manufactured and many older balances will remain in service for years to come. One type of automatic electronic balance, the so-called “hybrid,” bears considerable similarity to single-pan mechanical balances of the null type. (1)2
1.4This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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