ASTM D5793 - 13

    Standard Test Method for Binding Sites per Unit Length or Width of Pile Yarn Floor Coverings

    Active Standard ASTM D5793 | Developed by Subcommittee: D13.21

    Book of Standards Volume: 07.02


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    Significance and Use

    5.1 This test method is useful in quality and cost control during manufacture. Both appearance and performance of pile yarn floor coverings can be affected by the number of binding sites per length and width.

    5.2 This test method is considered satisfactory for acceptance testing of commercial shipments because current estimates of between-laboratory precision are acceptable and the method is used extensively in the trade for acceptance testing.

    5.2.1 If there are differences of practical significance between reported test results for two laboratories (or more), comparative tests should be performed to determine if there is statistical bias between them using competent statistical assistance. As a minimum, use test samples for such comparative tests that are as homogeneous as possible, drawn form the same lot of material as the samples that resulted in the disparate results during initial testing, and that are randomly assigned in equal numbers to each laboratory for testing. The test results from the laboratories should be compared using a statistical test for unpaired data at a probability level chosen prior to the testing series. If a bias is found either its cause must be found and corrected, or future test results for that material must be adjusted in consideration of the know bias.

    1. Scope

    1.1 This test method describes the measurement of the number of binding sites per unit length or width of machine-made, woven, knitted, and tufted pile yarn floor covering both before and after adhesive backing application.

    1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

    1.3 Determination of the number of binding sites per unit length or width of pile floor covering previously was contained within Test Methods D418.

    Note 1For user convenience, Subcommittee D13.21 has subdivided Test Method D418 into separate standards, of which this test method is one.

    1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


    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

    D418 Test Method for Testing Pile Yarn Floor Covering Construction

    D1776 Practice for Conditioning and Testing Textiles

    D1909 Standard Table of Commercial Moisture Regains for Textile Fibers

    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

    D5684 Terminology Relating to Pile Floor Coverings

    E122 Practice for Calculating Sample Size to Estimate, With Specified Precision, the Average for a Characteristic of a Lot or Process


    ICS Code

    ICS Number Code 59.080.60 (Textile floor coverings)

    UNSPSC Code

    UNSPSC Code 30161719(Carpet or rug underlays)


    DOI: 10.1520/D5793

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