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ASTM D1909-13

Historical Revision

Standard Tables of Commercial Moisture Regains and Commercial Allowances for Textile Fibers

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1.1 These tables list the commercial moisture regains and commercial allowances commonly used for a number of textile fibers. Such moisture regain and allowance values are intended primarily for determining the commercial weight of a specific fiber when the fiber is bought or sold on this basis. These regain and allowance values also are used in calculating the linear density of yarn in procedures employing such factors and in the quantitative analysis of fiber blends.


4.1 The value listed for the commercial moisture regain and commercial allowance of a specific fiber type is not an experimentally determined quantity but a purely defined value arrived at for commercial purposes by interested parties. The actual moisture regain values of textile materials, when in moisture equilibrium with the standard atmosphere for testing, can deviate from the listed values. Equilibrium moisture regain values depend upon the previous history of the material. The actual finish content of textile materials can deviate from the listed values (see Test Method D2494).

SDO ASTM: ASTM International
Document Number D1909
Publication Date Oct. 1, 2013
Language en - English
Page Count 3
Revision Level 13
Supercedes
Committee D13.51
Publish Date Document Id Type View
June 1, 2020 D1909-13R20E01 Revision
Oct. 1, 2013 D1909-13 Revision
March 1, 2004 D1909-04 Revision
Oct. 10, 1996 D1909-96 Revision
June 1, 2020 D1909-13R20 Reaffirmation
Feb. 1, 2012 D1909-04R12 Reaffirmation
Oct. 10, 1996 D1909-96R01 Reaffirmation