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  • ASTM
    D2720-94(2012)e1 Standard Practice for Calculation of Commercial Weight and Yield of Scoured Wool, Top, and Noil for Various Commercial Compositions
    Edition: 2012
    $87.60
    Unlimited Users per year

Description of ASTM-D2720 2012

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




ASTM D2720

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 1Because 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 Base Moisture Other Compo-
nents
ASTM Clean Wool Fiber Present A 86.0000 12.0000 2.0000
U.S. Customs Absolute Clean Content B 86.0000 12.0000 2.0000
IWTO Clean Wool Content C 83.5299 14.5299 1.9402
American Oil Combed Top D , E 82.4222 13.0435 4.5343
American Oil Combed Noil D , E 83.4113 12.0000 4.5887
American Dry Combed Top D , E 84.1454 13.0435 2.8111
American Dry Combed Noil D , E 85.1552 12.0000 2.8448
Bradford Oil Combed Top D , E 79.2980 15.9664 4.7356
Bradford Oil Combed Noil D , E 82.7760 12.2807 4.9433
Bradford Dry Combed Top D , E 82.6449 15.4334 1.9217
Bradford Dry Combed Noil D , E 85.7260 12.2807 1.9933
IWTO Noble Oil Combed Top C 79.2995 15.9664 4.7341
IWTO Noble Oil Combed Noil C 82.7775 12.2807 4.9418
IWTO Noble Dry Combed Top C 82.6469 15.4334 1.9197
IWTO Noble Dry Combed Noil C 85.7281 12.2807 1.9912
Schlumberger Oil Combed Top C 79.2995 15.9664 4.7341
Schlumberger Oil Combed Noil C 81.3503 13.7931 4.8566
Schlumberger Dry Combed Top C 82.6469 15.4334 1.9197
Schlumberger Dry Combed Noil C 84.2500 13.7931 1.9569

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


Keywords

commercial mass; wool; yield;


ICS Code

ICS Number Code 59.060.10 (Natural fibres)


DOI: 10.1520/D2720-94R12E01

ASTM International is a member of CrossRef.

ASTM D2720

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