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1.1 This test method provides a measurement of the commercial mass of a shipment of yarn or manufactured staple fiber or tow. This test method applies to (1) yarn of all fiber types except silk, glass, asbestos, and bast; (2) tops and slivers of all fiber types except wool, silk, glass, asbestos, and bast; and (3) manufactured fibers or tow, except glass and other fibers used for special purposes such as flock (Note 1).
Note 1—For other test methods for measuring mass of fibrous materials, refer to Practice D 2720.
1.1.1 Sampling in this test method is primarily for use in acceptance testing rather than production control. manufactured fiber producers usually sample for the commercial "mass" of product on an on-going basis rather than each shipment to a customer.
1.2 Commercial mass has been traditionally based on one of three options depending on the state of the material: ( 1) dried, unscoured yarn, staple fiber, tow, and so forth, using commercial moisture regain in the calculations; (2) dried, scoured yarn, staple fiber, tow, and so forth, using commercial moisture regain values in the calculations; and (3) dried, scoured yarn, staple fiber, tow, and so forth, using a commercial allowance agreed upon between the purchaser and the supplier in the calculations.
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 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.
D123 Terminology Relating to Textiles
D629 Test Methods for Quantitative Analysis of Textiles
D1909 Standard Tables of Commercial Moisture Regains and Commercial Allowances for Textile Fibers
D2257 Test Method for Extractable Matter in Textiles
D2258 Practice for Sampling Yarn for Testing
D2720 Practice for Calculation of Commercial Weight and Yield of Scoured Wool, Top, and Noil for Various Commercial Compositions
D3333 Practice for Sampling Manufactured Staple Fibers, Sliver, or Tow for Testing
D3888 Terminology for Yarn Spinning Systems
D3990 Terminology Relating to Fabric Defects
D4849 Terminology Related to Yarns and Fibers
ICS Number Code 59.080.20 (Yarns)
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ASTM D2494-02, Standard Test Method for Commercial Mass of a Shipment of Yarn or Manufactured Staple Fiber or Tow, ASTM International, West Conshohocken, PA, 2002, www.astm.orgBack to Top