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ASTM E29-22

Current Revision

Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

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1.1 This practice is intended to assist the various technical committees in the use of uniform methods of indicating the number of digits which are to be considered significant in specification limits, for example, specified maximum values and specified minimum values. Its aim is to outline methods which should aid in clarifying the intended meaning of specification limits with which observed values or calculated test results are compared in determining conformance with specifications.

1.2 This practice is intended to be used in determining conformance with specifications when the applicable ASTM specifications or standards make direct reference to this practice.

1.3 Reference to this practice is valid only when a choice of method has been indicated, that is, either absolute method or rounding method.

1.4 The system of units for this practice is not specified. Dimensional quantities in the practice are presented only as illustrations of calculation methods. The examples are not binding on products or test methods treated.

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


This practice is intended to assist the various technical committees in the use of uniform methods of indicating the number of digits which are to be considered significant in specification limits, for example, specified maximum values and specified minimum values. This practice is also intended to be used in determining conformance with specifications when the applicable ASTM specifications or standards make a direct reference.


SDO ASTM: ASTM International
Document Number E29
Publication Date April 1, 2022
Language en - English
Page Count 5
Revision Level 22
Supercedes
Committee E11.30
Publish Date Document Id Type View
April 1, 2022 E0029-22 Revision
Aug. 1, 2013 E0029-13 Revision
Oct. 1, 2008 E0029-08 Revision
Nov. 15, 2006 E0029-06B Revision
Sept. 15, 2006 E0029-06A Revision
May 1, 2006 E0029-06 Revision
Dec. 1, 2004 E0029-04 Revision
May 10, 2002 E0029-02E01 Revision
May 10, 2002 E0029-02 Revision
Not Available E0029-93A Revision
Not Available E0029-90 Revision
Not Available E0029-67R80E01 Revision
Not Available E0029-67 Revision
Jan. 1, 2019 E0029-13R19 Reaffirmation
May 10, 1999 E0029-93AR99 Reaffirmation