ASTM E29-93a(1999)
Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

Standard No.

ASTM E29-93a(1999)

Release Date

1993

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM E29-02

Latest

ASTM E29-22

Scope

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

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 This practice describes two commonly accepted methods of rounding data, identified as the Absolute Method and the Rounding Method. In the application of this practice to a specific material or materials it is essential to specify which method is intended to apply. In the absence of such specification, reference to this practice, which expresses no preference as to which method should apply, would be meaningless. The choice of method is arbitrary, depending upon the current practice of the particular branch of industry or technology concerned, and should therefore be specified in the prime publication.

1.4 Section 7 of this practice gives guidelines for use in recording, calculating, and reporting the final result for test data.

ASTM E29-93a(1999) history

• 2022 ASTM E29-22 Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
• 2019 ASTM E29-13(2019) Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
• 2013 ASTM E29-13 Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
• 2008 ASTM E29-08 Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
• 2006 ASTM E29-06b Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
• 2006 ASTM E29-06a Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
• 2006 ASTM E29-06 Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
• 2004 ASTM E29-04 Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
• 2002 ASTM E29-02e1 Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
• 2002 ASTM E29-02 Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
• 1993 ASTM E29-93a(1999) Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
• 1993 ASTM E29-93a Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
• 1990 ASTM E29-90 Standard Practice for Using Digits in Test Data to Determine Conformance with Specifications
• 1980 ASTM E29-67(1980)e1 Standard Test Method for Indicating Which Places Of Figures Are To Be Considered Significant In Specified Limiting Values
• 1967 ASTM E29-67 Recommended Practice For Indicating Which Places Of Figures Are To Be Considered Significant In Specified Limiting Values