ASTM_D_1574_-_22.pdf

Designation:D157422Standard Test Method forExtractable Matter in Wool and Other Animal Fibers1This standard is issued under the fixed designation D1574;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A 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 test method covers the determination of the amountof extractable matter in samples of all forms of wool,exceptgrease wool,that is extractable with a non-flammable vapordegreasing and cleaning solvent.1.2 This test method does not cover the determination of theamounts of different components in the extracted matter northeir identification.1.3 This test method is suitable for use with other animalfibers.NOTE1The determination of extractable matter in yarns and in feltsis covered in Test Methods D2257 and D461.For the determination ofalcohol-extractable matter in oven-dry scoured wool,refer to Test Meth-ods D584 and D1334.1.4 The values stated in SI units are to be regarded asstandard.The values given in parentheses after SI units areprovided for information only and are not considered standard.1.5 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 environmental practices and deter-mine the applicability of regulatory limitations prior to use.See 5.4 and Note 3.1.6 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,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D123 Terminology Relating to TextilesD461 Test Methods for Felt(Withdrawn 2003)3D584 Test Method for Wool Content of Raw WoolLaboratory ScaleD1334 Test Method for Wool Content of Raw WoolCommercial ScaleD2257 Test Method for Extractable Matter in TextilesD2462 Test Method for Moisture in Wool by DistillationWith Toluene(Withdrawn 2022)3D4845 Terminology Relating to Wool3.Terminology3.1 Definitions:3.1.1 For definitions of textile terms used in this testmethod:animal fiber,extractable matter,grease wool,recycledwool,wool and wool,refer to Terminology D4845.3.2 For definitions of other textile terms used in this testmethod,refer to Terminology D123.4.Summary of Test Method4.1 The specimen is extracted in a Soxhlet apparatus with aspecified halogenated hydrocarbon solvent.The extract isfiltered,the solvent is evaporated,and both the residue and theextracted specimen are dried and weighed.The amount ofextractable matter is calculated and reported as a percentage ofthe oven-dry mass of the wool specimen,that is,the mass ofthe oven-dried extracted specimen plus the mass of theoven-dried extracted material.4.2 Special procedures are provided to correct for errors indetermining the amount of extractable matter as summarized in4.1 if it is known or thought to contain volatile components.5.Significance and Use5.1 Test Method D1574 is considered satisfactory for ac-ceptance testing since the method has been used extensively inthe trade for acceptance testing.5.1.1 In case of a dispute arising from differences inreported test results when using Test Method D1574 foracceptance testing of commercial shipments,the purchaser andthe supplier should conduct comparative tests to determine ifthere is a statistical bias between their laboratories.Competent1This test method is under the jursidiction ofASTM Committee D13 on Textilesand is the direct responsibility of Subcommittee D13.13 on Wool and Felt.Current edition approved June 1,2022.Published July 2022.Originally approvedin 1958.Last previous edition approved in 2013 as D1574 04(2013)which waswithdrawn January 2022 and reinstated June 2022.DOI:10.1520/D1574-22.2For 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 to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.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 theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1statistical assistance is recommended for the investigation ofbias.As a minimum,the two parties should take a group of testspecimens that are as homogeneous as possible and that arefrom