ASTM D6631 - 05(2019)

    Standard Guide for Committee D01 for Conducting an Interlaboratory Study for the Purpose of Determining the Precision of a Test Method

    Active Standard ASTM D6631 | Developed by Subcommittee: D01.20

    Book of Standards Volume: 06.01


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    Significance and Use

    3.1 The purpose of an interlaboratory evaluation, as defined in this guide, is to determine the variability of results obtained in different laboratories on equivalent equipment using a prescribed test method.

    3.2 The definitions of statistical terms used in this guide are contained in Terminology E456.

    1. Scope

    1.1 This guide covers a simplified statistical procedure for planning and conducting interlaboratory evaluations of test methods.

    1.2 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.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods

    E456 Terminology Relating to Quality and Statistics

    E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

    E1345 Practice for Reducing the Effect of Variability of Color Measurement by Use of Multiple Measurements


    ICS Code

    ICS Number Code 03.120.20 (Product and company certification. Conformity assessment)

    UNSPSC Code

    UNSPSC Code


    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/D6631-05R19

    Citation Format

    ASTM D6631-05(2019), Standard Guide for Committee D01 for Conducting an Interlaboratory Study for the Purpose of Determining the Precision of a Test Method, ASTM International, West Conshohocken, PA, 2019, www.astm.org

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