1、Designation:D225798(Reapproved 2012)Standard Test Method forExtractable Matter in Textiles1This standard is issued under the fixed designation D2257;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()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1.Scope1.1 This test method covers a procedure for determining theextractable
3、 material on most fibers,yarns,and fabrics.Threeoptions are included.Option 1 uses heat and Soxhlet extractionapparatus.Option 2 uses room temperature and extractionfunnels.Option 3 uses either Option 1 or Option 2 extractionbut provides for calculation of extractable matter from the lossin mass of
4、the material due to the extraction rather than theextractable matter residue.NOTE1Other standards for the determination of extractable matter intextiles made of specific fibers include:Specification D541,SpecificationD681,and Test Method D1574.1.1.1 The solvents for use in this method are any solven
5、tsthat the party or parties concerned agreed on;such as,HalogenatedHydrocarbon(HH)chloroform,tetrachloroethane,alcohol.1.1.2 This test method may not extract cross-linked finishesor resins which may be on the textile.1.2 The values stated in SI units are to be regarded asstandard.No other units of m
6、easurement are included in thisstandard.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 and health practices and determine the applica-bility of regulatory lim
7、itations prior to use.See Sections6 and 7.2.Referenced Documents2.1 ASTM Standards:2D123 Terminology Relating to TextilesD541 Specification for Single Jute Yarn(Withdrawn 1996)3D681 Specification for Jute Rove and Plied Yarn for Elec-trical and Packing Purposes(Withdrawn 2000)3D1574 Test Method for
8、Extractable Matter in Wool andOther Animal FibersD1909 Standard Table of Commercial Moisture Regains forTextile FibersD2258 Practice for Sampling Yarn for TestingD3333 Practice for Sampling Manufactured Staple Fibers,Sliver,or Tow for TestingD4920 Terminology Relating to Conditioning,Chemical,and Th
9、ermal Properties2.2 Other Documents:IWTO 10-62(E)Method for Determination of the Dichlo-romethane Soluble Matter in Combed Wool Sliver43.Terminology3.1 Definitions:3.1.1 extractable matter,nnonfibrous material in or on atextile not including water,which is removable by a specifiedsolvent or solvents
10、 as directed in a specified procedure.3.1.1.1 DiscussionNonfibrous material is usually oily,waxy,resinous,or polymeric in nature,but may also includeother material,such as protein,particularly if ethyl alcohol isused,or in,the extracting solvent.3.1.2 For definitions of other moisture terms related
11、totextiles,refer to Terminology D4920.For definitions of othertextile terms used in this test method refer to TerminologyD123.4.Summary of Test Method4.1 The specimen is extracted either in Soxhlet apparatus(Option 1),or extraction funnel(Option 2)first with an agreedsolvent(Note 2).The solvents are
12、 evaporated and the residuesand the specimens are dried and weighed separately.Theamounts of extracted matter are reported as percentages of1This test method is under the jurisdiction ofASTM Committee D13 on Textilesand is the direct responsibility of Subcommittee D13.51 on Conditioning and,Chemical
13、 and Thermal Properties.Current edition approved Feb.1,2012.Published February 2012.Originallyapproved in 1989.Last previous edition approved in 1998 as D2257 98(2004).DOI:10.1520/D2257-98R12.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at servic
14、eastm.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 onwww.astm.org.4Available from International Wool Secretariat,Carlton Gardens,London S.W.1,England.Copyri
15、ght ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 either the oven-dried mass or of the oven-dried mass pluscommercial moisture regain for the textile.4.2 Alternatively,in Option 3,the specimen is dried andweighed before and after extraction using
16、 Option 1 or Option2.Extractable matter is calculated as the loss in mass reportedas percentages of the extracted oven-dried mass or this massplus commercial moisture regain for the textile.5.Significance and Use5.1 This test method may be used for acceptance testing ofcommercial shipments.5.1.1 In case of a dispute arising from differences inreported test results using this test method for acceptancetesting of commercial shipments,the purchaser and the sup-plier should conduct comparative tests
