ASTM D6674 - 01(2013)

    Standard Guide for Proficiency Test Program for Fabrics

    Active Standard ASTM D6674 | Developed by Subcommittee: D13.60

    Book of Standards Volume: 07.02


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    ASTM D6674

    Significance and Use

    4.1 Proficiency testing is a means of securing estimates of the variability of results obtained by different laboratories testing homogeneous materials taken from batch samples when following procedures prescribed in a specific test method.

    4.1.1 For the purpose of this guide, homogeneous materials are considered to be laboratory samples cut from the same batch sample (roll or garment lot) and selected at random for the participant laboratories.

    4.2 This proficiency test program is to be considered a full-scale interlaboratory test, in which a reasonably large number of laboratories participate by testing a series of materials using one or more operators per laboratory and report the data for analysis.

    4.2.1 For the purposes of this guide, Full Scale Laboratory Test is defined in Practice D2904. This is not to be confused with the full scale testing terminology and definitions which appear in other test methods, such as flammability, that describe the size of the specimens being tested.

    4.3 The statistical data generated by this practice provide information needed to exhibit participation in a formal proficiency test study.

    4.4 All data are submitted to the program coordinator at ASTM Headquarters for the preparation and distribution of the proficiency testing program reports. All laboratory data are confidential with no disclosure of lab identity except for each participant's own laboratory. Published reports contain all laboratory test data (coded), statistical analysis of test data, charts plotting test results versus lab code, and other information.

    1. Scope

    1.1 This guide outlines the Proficiency Test Program for Fabrics. Elements for planning the proficiency test program, selecting the sample fabrics to be used, the testing protocol, and the calculations for the data to be reported are included in this practice.

    1.2 The planning of the proficiency test program requires a general knowledge of testing of textile fabrics and statistical principles included in the analysis of the data.

    1.3 This guide is designed to meet the quality systems proficiency and competence requirements of participating laboratories. This program is not accredited to any international standard.

    1.4 The instructions in this guide follow the logic of full scale laboratory tests as described in Practice D2904 and Guide E1301, except with this new guide placing its emphasis on proficiency testing.

    1.5 Procedures given in this guide are applicable to methods based on the measurement of discrete measurement data and grades or scores.


    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

    D123 Terminology Relating to Textiles

    D737 Test Method for Air Permeability of Textile Fabrics

    D1230 Test Method for Flammability of Apparel Textiles

    D2261 Test Method for Tearing Strength of Fabrics by the Tongue (Single Rip) Procedure (Constant-Rate-of-Extension Tensile Testing Machine)

    D2904 Practice for Interlaboratory Testing of a Textile Test Method that Produces Normally Distributed Data

    D2906 Practice for Statements on Precision and Bias for Textiles

    D3775 Test Method for Warp (End) and Filling (Pick) Count of Woven Fabrics

    D5034 Test Method for Breaking Strength and Elongation of Textile Fabrics (Grab Test)

    D5035 Test Method for Breaking Force and Elongation of Textile Fabrics (Strip Method)

    D6545 Test Method for Flammability of Textiles Used in Childrens Sleepwear

    E1301 Guide for Proficiency Testing by Interlaboratory Comparisons


    ICS Code

    ICS Number Code 59.020 (Processes of the textile industry)

    UNSPSC Code

    UNSPSC Code


    DOI: 10.1520/D6674

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