ASTM D2720 - 94(2012)e1

    Standard Practice for Calculation of Commercial Weight and Yield of Scoured Wool, Top, and Noil for Various Commercial Compositions

    Active Standard ASTM D2720 | Developed by Subcommittee: D13.13

    Book of Standards Volume: 07.01


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    1. Scope

    1.1 This practice includes, in Table 1, the commercial composition corresponding to different commercial designations for scoured wool, wool top, and wool noil, all of which contain, in addition to wool base, various percentages of moisture, material extractable with alcohol, and mineral matter.

    1.2 This practice includes directions for the calculation of the commercial weight of wool corresponding to different commercial designations for several forms of wool, and for converting the commercial weight (mass) calculated on one basis to the commercial weight calculated on a different basis.

    1.3 This practice also includes directions for calculating the yield, on various commercial designation bases, obtained by processing raw wool, and for converting the yield calculated on one commercial designation basis to the yield on another commercial designation basis.

    Note 1—Because of trade practice the term weight is used in this practice instead of the technically correct term mass.

    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.

    TABLE 1 Commercial Composition of Commercially
    Designated Scoured Wool, Wool Top, and Wool Noil

    Percentage
    Wool BaseMoistureOther Compo-
    nents
    ASTM Clean Wool Fiber PresentA86.0000 12.00002.0000
    U.S. Customs Absolute Clean ContentB86.000012.0000 2.0000
    IWTO Clean Wool ContentC83.5299 14.52991.9402
    American Oil Combed TopD ,E82.422213.04354.5343
    American Oil Combed NoilD ,E83.411312.00004.5887
    American Dry Combed TopD ,E84.145413.04352.8111
    American Dry Combed NoilD ,E85.155212.00002.8448
    Bradford Oil Combed TopD ,E79.298015.96644.7356
    Bradford Oil Combed NoilD ,E82.776012.28074.9433
    Bradford Dry Combed TopD ,E82.644915.43341.9217
    Bradford Dry Combed NoilD ,E85.726012.28071.9933
    IWTO Noble Oil Combed TopC79.2995 15.96644.7341
    IWTO Noble Oil Combed NoilC82.7775 12.28074.9418
    IWTO Noble Dry Combed TopC82.6469 15.43341.9197
    IWTO Noble Dry Combed NoilC85.7281 12.28071.9912
    Schlumberger Oil Combed TopC79.2995 15.96644.7341
    Schlumberger Oil Combed NoilC81.3503 13.79314.8566
    Schlumberger Dry Combed TopC82.6469 15.43341.9197
    Schlumberger Dry Combed NoilC84.2500 13.79311.9569

    A ASTM Method D584, Test for Wool Content of Raw Wool, Laboratory Scale.

    B Tariff Schedules of the United States of America (1975), Schedule 3, Part 1, Subpart C, Headnote 1(c).

    C IWTO Core Test Regulations, 1974, International Wool Textile Organization.

    D Circular No. 3267, Nov. 10, 1954, Boston Wool Trade Assn.

    E Circular No. 4899, Nov. 2, 1967, Boston Wool Trade Assn.


    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

    D584 Test Method for Wool Content of Raw Wool--Laboratory Scale

    D4845 Terminology Relating to Wool


    ICS Code

    ICS Number Code 59.060.10 (Natural fibres)

    UNSPSC Code

    UNSPSC Code 11151508(Wool fibers)


    Referencing This Standard

    DOI: 10.1520/D2720-94R12E01

    ASTM International is a member of CrossRef.

    Citation Format

    ASTM D2720-94(2012)e1, Standard Practice for Calculation of Commercial Weight and Yield of Scoured Wool, Top, and Noil for Various Commercial Compositions, ASTM International, West Conshohocken, PA, 2012, www.astm.org

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