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    ASTM D3775 - 17e1

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

    Active Standard ASTM D3775 | Developed by Subcommittee: D13.60

    Book of Standards Volume: 07.01

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    Significance and Use

    5.1 This test method is considered satisfactory for acceptance testing of commercial shipments because it has been used extensively in the trade for that purpose.

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

    5.1.2 This test method is suitable for use with narrow fabrics when the count across the total width is measured in the narrow direction and extrapolated to the number of yarns per centimeter (inch).

    1. Scope

    1.1 This test method covers the measurement of end (warp) and pick (filling) count and is applicable to all types of woven fabrics.

    Note 1: Historically, the term fabric count has been used to describe the end and pick count of woven fabrics. The terms end count and pick count are replacing the term fabric count, to provide clarity.

    1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

    1.2.1 Throughout this document, there will be some instances in which the units do not convert 1:1. This is to acknowledge that this is a global document and that different parts of the world use different units of measurement. Organizations using the metric system wil report the count per 1 cm. Organizations using the English system will report the count per 1 in.

    1.3 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, health and environmental practices and determine the applicability of regulatory limitations prior to use.

    Note 2: For a current test method for the wale and course count of weft knitted fabrics, refer to Test Method D8007.

    1.4 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

    D123 Terminology Relating to Textiles

    D1776 Practice for Conditioning and Testing Textiles

    D4850 Terminology Relating to Fabrics and Fabric Test Methods

    D7023 Terminology Relating to Home Furnishings

    D8007 Test Method for Wale and Course Count of Weft Knitted Fabrics

    ICS Code

    ICS Number Code 59.080.30 (Textile fabrics)

    UNSPSC Code

    UNSPSC Code 11161800(Synthetic fabrics)

    Referencing This Standard
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    DOI: 10.1520/D3775-17E01

    Citation Format

    ASTM D3775-17e1, Standard Test Method for End (Warp) and Pick (Filling) Count of Woven Fabrics, ASTM International, West Conshohocken, PA, 2017, www.astm.org

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