Standards

ASTM D4855-97(2002)


Withdrawn Standard: ASTM D4855-97(2002) Standard Practice for Comparing Test Methods (Withdrawn 2008)


Developed by Subcommittee: D13.93

WITHDRAWN, NO REPLACEMENT



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Description

Withdrawn Rationale:

This practice provides a procedure for evaluating and comparing test methods under controlled conditions using the same materials tested during the same time span. The practice describes how to obtain and compare estimates on precision, sensitivity, and bias.

This practice is being withdrawn with no replacement because D13 no longer has the expertise to maintain and statistical standards are being maintained by committee E11.

Formerly under the jurisdiction of Committee D13 on Textiles, this practice was withdrawn in July 2008.


1. Scope

1.1 This practice provides a procedure for evaluating and comparing test methods under controlled conditions using the same materials tested during the same time span. The practice describes how to obtain and compare estimates on precision, sensitivity, and bias.

1.2 This practice covers the following topics:

Topic TitleSection number
Scope1
Referenced Documents2
Terminology3
Significance and Use4
Requirements for Materials5
Evaluating Test Methods6
Sensitivity Criterion7
Basic Statistical Design8
Experimental Procedure9
Procedure for Comparing Precision10
Evaluating the Bias Between Test Methods11
Procedure for Comparing Sensitivities12
Report13



Keywords

accuracy; bias; comparing test methods; sensitivity; statistics;



DOI: 10.1520/D4855-97R02

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