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ASTM E29-06b

Historical 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.


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. Two commonly accepted methods of rounding data, identified as the absolute method and the rounding method are described. The guidelines for retaining significant figures in calculation and reporting of test results are presented in details.


SDO ASTM: ASTM International
Document Number E29
Publication Date Nov. 15, 2006
Language en - English
Page Count 5
Revision Level 06b
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