ASTM D1909-2004 Standard Table of Commercial Moisture Regains for Textile Fibers《纺织纤维商业公定回潮率标准表》.pdf

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1、Designation: D 1909 04StandardTable of Commercial Moisture Regains for Textile Fibers1This standard is issued under the fixed designation D 1909; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number i

2、n parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This table lists the commercial moisture regains com-monly used for a number of textile fibers. Such moisture regainvalues are intended primar

3、ily for determining the commercialweight of a specific fiber when the fiber is bought or sold onthis basis. These regain values also are used in calculating thelinear density of yarn in procedures employing such factors andin the quantitative analysis of fiber blends.2. Referenced Documents2.1 ASTM

4、Standards:2D 123 Terminology Relating to TextilesD 2118 Practice for Assigning a Standard CommercialMoisture Content for Wool and Its ProductsD 2720 Practice for Calculation of Commercial Weight andYield of Scoured Wool, Top, and Noil for Various Com-mercial Compositions3. Terminology3.1 Definitions

5、:3.1.1 commercial moisture regain (CMR), na formallyadopted, arbitrary value, to be used with the oven-dried mass oftextile fibers, when calculating the commercial mass of ashipment or delivery.3.1.2 For definitions of other textile terms used, refer toTerminology D 123.4. Significance and Use4.1 Th

6、e value listed for the commercial moisture regain of aspecific fiber type is not an experimentally determined quantitybut a purely arbitrary value arrived at for commercial purposesby interested parties. The actual moisture regain values oftextile materials, when in moisture equilibrium with the sta

7、n-dard atmosphere for testing, bear no consistent relation to thecommercial moisture regain values listed herein. Equilibriummoisture regain values depend upon the previous history of thematerial.5. Table of Commercial Moisture Regain Values5.1 Commercial moisture regain values for specified fibersa

8、re listed in Table 1.6. Keywords6.1 moisture regain; textile fiber1This table is under the jurisdiction of ASTM Committee D13 on Textiles andis the direct responsibility of Subcommittee D13.51 on Chemical Conditioning andPerformance Test Methods.Current edition approved March 1, 2004. Published Marc

9、h 2004. Originallyapproved in 1961. Last previous edition approved in 2001 as D 1909 96(2001).2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer tot he standards Document

10、 summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users

11、of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every fi

12、ve years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical

13、committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, P

14、A 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).TABLE 1 Commercial Moisture Regai

15、n ValuesFiber Regain, % Fiber Regain, %Acetate (secondary) 6.5 ModacrylicGAcrylic 1.5 Class I 0.4Aramid, forAClass II 2.0High Modulus Yarn 3.5Standard Yarn 7.0Class III 3.0Nylon (polyamide) 4.5Olefin 0.0Azlon 10.0 Polyester 0.4Cotton RamieRaw cottonBRaw 7.6Natural cotton yarn 7.0CScoured 7.8Dyed cot

16、ton yarn 8.0CRayon (regenerated cellulose) 11.0Mercerized cotton yarn 8.5CRubber 0.0Flax (raw) 12.0DSaran 0.0Flax (linen) 8.75 Silk 11.0Fluorocarbon 0.0 Spandex 1.3Glass 0.0 Triacetate (primary) 3.5Hemp 12.0DVinal 4.5Jute 13.75DVinyon 0.0Metallic 0.0 Wool (all forms) 13.6E,FAAramid polymers are manu

17、factured for specific but diverse end uses and have nominal regains that vary in the range 1.5 to 7.0 %. The values listed in the table arethe commercial regains of fibers currently produced.BThere is no commercial regain value for raw cotton in U.S. trade. The value specified in Rule 15 of the Egyp

18、tian sales contracts and in Rule 105 of the Liverpool salescontract for Egyptian and Syrian cotton is 8.5. The value 8.5 is also used customarily for the cotton component of blends containing cotton in the process of performingquantitative analysis.CCommercial Standard CS11-63, which is issued by th

19、e National Bureau of Standards, recommends these values to be used for cotton yarns by dyers and finishers.DThese values are the official commercial moisture regains listed in British Standards Handbook 11, Methods of Test for Textiles, Section 1, 1963.EA moisture content of 12.0 %, which is equal t

20、o a moisture regain of 13.6 %, has been recommended for all wool yarns in Practice D 2118. However, certain other regainvalues are commonly used. Other values, which should perhaps be classified as commercial allowance values, are listed below for information only.Woolen yarn 13.0Woolen hand knittin

21、g yarn 11.1Worsted yarn (dry spun) 15.0Worsted yarn (oil spun) 13.0FFor the commercial moisture contents of wools to which various specific commercial designations are applied, see Practice D 2720.GClass III modacrylic fibers include such fibers as Verel modacrylic fiber. Class II includes such fibers as SEF modacrylic fiber. Class I modacrylic fibers includes allother modacrylic fibers.D1909042