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ASTM E29-08 PDF

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ASTM E29-08

Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
ASTM International / 01-Oct-2008 / 5 pages
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.



Keywords: Calculating test values; Conformance/conformity assessment; Data analysis; Digits; Limiting values; Observation/observed values; Rounding-off method; Significant figures; Specifications; Statistical methods ; ICS Number Code 17.020 (Metrology and measurement in general); 19.020 (Test conditions and procedures in general)

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