ASTM D2260 - 03(2018)

    Standard Tables of Conversion Factors and Equivalent Yarn Numbers Measured in Various Numbering Systems

    Active Standard ASTM D2260 | Developed by Subcommittee: D13.58

    Book of Standards Volume: 07.01


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    1. Scope

    1.1 These tables include (1) a series of conversion factors required to convert the number of a yarn measured in a specific system to the equivalent number measured in various other systems (see Table 1), and (2) specific equivalent numbers for yarns measured in various systems (see Table 2).

    1.2 The content is basically consistent with recommendations of the International Organization for Standardization (ISO) Standard 2947.

    1.3 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.

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

    1.5 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.

    NIST Standard

    NIST Circular M121, January 1936 Available from National Institute of Standards and Technology (NIST), 100 Bureau Dr., Stop 1070, Gaithersburg, MD 20899-1070, http://www.nist.gov.

    ASTM Standards

    D123 Terminology Relating to Textiles

    D4849 Terminology Related to Yarns and Fibers

    SI10 Standard for Use of the International System of Units (SI): The Modern Metric System Excerpts from , Standard for Use of the International System of Units (SI): The Modern Metric System can be found in the Annual Book of ASTM Standards, Vols 07.01 and 07.02. The standard is available as a separate publication and appears in its entirety in Vol 14.02.


    ICS Code

    ICS Number Code 59.080.20 (Yarns)

    UNSPSC Code

    UNSPSC Code 11151700(Yarns)


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

    DOI: 10.1520/D2260-03R18

    Citation Format

    ASTM D2260-03(2018), Standard Tables of Conversion Factors and Equivalent Yarn Numbers Measured in Various Numbering Systems, ASTM International, West Conshohocken, PA, 2018, www.astm.org

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