2019 Annual Fee: $414.00

    Schedule: June, December

    Accredited Proficiency Testing Provider*

    This program is accredited in accordance with the recognized International Standard ISO/IEC 17043: 2010 Conformity Assessment - General Requirements for Proficiency Testing, by the American Association for Laboratory Accreditation. Certificate Number: 4209.01
    List of Programs and Scopes


    ASTM's Proficiency Test Program for Knit Fabrics provides participating laboratories with a statistical quality assurance (SQA) tool, enabling them to compare their performance in the use of ASTM methods for knit fabrics against other laboratories worldwide.

    Conducted biannually, this program provides (for each test cycle) three test samples, a hyperlink to record and submit test data, and instructions for conducting the tests.

    Test samples include three types of knit fabrics. Laboratories are instructed to conduct the tests in their facilities using the ASTM methods cited in the program (or other methods used by the lab) and to record their test results on the interactive form.

    Each laboratory electronically submits their test data to ASTM for use in generating statistical summary reports. ASTM handles all data on a strictly confidential basis with no disclosure of lab identity except for one's own laboratory. Final reports contain all laboratory test data (coded), statistical analysis of test data, charts plotting test results versus lab code, and other information.

    For more information, contact us.


    • D2594 Stretch Properties of Knitted Fabrics Having Low Power
    • D3774 Width of Textile Fabric
    • D3776 Mass Per Unit Area (Weight) of Fabric
    • D3786 Bursting Strength of Textiles Fabrics – Diaphragm Bursting Strength Tester Method
    • ASTM D8007-15e1 - Standard Test Method for Wale and Course Count of Weft Knitted Fabrics
    • AATCC 135 Dimensional Changes of Fabrics after Home Laundering
    • AATCC 179 Skewness Change in Fabric and Garment Twist Resulting from Automatic Home Laundering

    Participation does not require performance of all tests.


    This program provides you with:

    • The resources you need to satisfy proficiency testing elements of laboratory accreditation
    • A useful quality control tool to monitor the strengths and weaknesses of laboratory performance
    • Periodic comparison of test results and calculated statistical parameters with others in the textiles testing community worldwide
    • A useful quality reference sample upon completion of testing

    Each laboratory returns their completed test data to ASTM for use in generating statistical summary reports. Final reports, provided to participants only, contain:

    • Each participating laboratory's test results (coded)
    • Statistical analysis of test data
    • Charts plotting test results versus laboratory code
    • Other pertinent information

    Should you have an issue with your published results, please write to with your lab number and account number.


    Committee D13 on Textiles, consisting of over 500 members, and developer of over 300 standards, provides the technical direction for the program. Test information generated in the program is utilized by Committee D13 to determine if modifications to ASTM documents or new standards are warranted.