ASTM D2817-2018 Standard Specification for Maximum Cashmere Coarse-Hair Content in Cashmere.pdf

1、Designation: D2817 18Standard Specification forMaximum Cashmere Coarse-Hair Content in Cashmere1This standard is issued under the fixed designation D2817; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A

2、 number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers the allowable cashmerecoarse-hair content in cashmere which has been processed atleast to the roving stage.1

3、.2 For blends of cashmere hair and other fibers, thisspecification is applicable only to the cashmere hair content ofsuch blends.NOTE 1For the determination of the cashmere coarse-hair content incashmere, refer to Test Method D2816. For the identification of textilefibers see Methods D276. For the q

4、uantitative determination of thecomposition of textile blends, see Test Methods D629.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety, health, and environmen

5、tal practices and deter-mine the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, G

6、uides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2D123 Terminology Relating to TextilesD276 Test Methods for Identification of Fibers in TextilesD629 Test Methods for Quantitative Analysis of Textil

7、esD2816 Test Method for Cashmere Coarse-Hair Content inCashmere (Withdrawn 2018)3D4845 Terminology Relating to Wool3. Terminology3.1 For all terminology relating to D13.13, Wool and WoolFelt, refer to Terminology D4845.3.1.1 The following terms are relevant to this specification:cashmere, coarse hai

8、r, cashmere coarse hair content, cashmeredown, cashmere hair.3.2 For all other terminology related to textiles, see Termi-nology D123.4. Significance and Use4.1 This specification sets the maximum permissible cash-mere coarse-hair content for cashmere in the form of roving,yarn, or fabric.4.2 When a

9、greed upon by parties in interest, this specifica-tion provides a basis for acceptance testing of roving, yarn, orfabric of cashmere, or blends of cashmere and other fibers insuch products.5. Specification for Cashmere5.1 The cashmere coarse-hair content of cashmere in theform of roving, yarn, or fa

10、bric shall not exceed 0.7 % bylength.NOTE 2Extensive interlaboratory tests have shown that when thecashmere coarse-hair content exceeds 0.7 % by length, the correspondingpercentage by mass of cashmere coarse-hair in the product generallyexceeds 3.0 %. The data from these studies are filed with the s

11、ecretary ofSubcommittee D13.13, Committee D13 of ASTM.6. Test Method6.1 Determine the coarse-hair content as directed in TestMethod D2816.7. Number of Tests7.1 Except in case of dispute, make a single test for thedetermination of the cashmere coarse-hair content of cashmereas directed in Test Method

12、 D2816.7.2 In case of dispute, make two additional tests for cash-mere coarse hair content on different samples and base thedecision on the majority result.8. Keywords8.1 animal fibers (except wool); content1This specification is under the jurisdiction of ASTM Committee D13 onTextiles and is the dir

13、ect responsibility of Subcommittee D13.13 on Wool and Felt.Current edition approved July 1, 2018. Published August 2018. Originallyapproved in 1969. Last previous edition approved in 2009 as D2817 05(2009)which was withdrawn January 2018 and reinstated in July 2018. DOI: 10.1520/D2817-18.2For refere

14、nced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onw

15、ww.astm.org.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopm

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