ASTM_D_1576_-_22.pdf

Designation:D157622Standard Test Method forMoisture in Wool by Oven-Drying1This standard is issued under the fixed designation D1576;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 moisture present in ordinary commercial and industrialsamples of wool in all forms except grease wool,using theoven-drying technique.1.2 Formulas for calculating the moisture content(as-received basis)and moisture regain(oven-dried basis)aregiven.It is always important to use the correct term whichcorresponds to the basis used in the calculation(see 12.2.1).NOTE1The determination of moisture content for textile materials ingeneral is covered in Test Methods D2654,and an optimal method fordetermining the moisture in wool by distillation with toluene is covered inTest Method D2462.Amethod for sampling wool for the determination ofmoisture in wool is covered in Practice D2525.The oven-drying methodhas been adapted for cotton in Test Method D2495.1.3 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 environmental 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,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 TextilesD1060 Practice for Core Sampling of Raw Wool in Packagesfor Determination of Percentage of Clean Wool FiberPresentD1776 Practice for Conditioning and Testing TextilesD2258 Practice for Sampling Yarn for TestingD2462 Test Method for Moisture in Wool by DistillationWith Toluene(Withdrawn 2022)3D2495 Test Method for Moisture in Cotton by Oven-DryingD2525 Practice for Sampling Wool for Moisture(Withdrawn2022)3D2654 Test Methods for Moisture in TextilesD3333 Practice for Sampling Manufactured Staple Fibers,Sliver,or Tow for TestingD4845 Terminology Relating to Wool3.Terminology3.1 For all terminology related to D13.13,Wool and Felt,see Terminology D4845.3.1.1 The following terms are relevant to this standard:grease wool;moisture content;moisture-free;moisture regain;oven-dried;pulled wool;raw wool;recycled wool;scouredwool;virgin wool;wool;wool,as defined in the Wool ProductsLabeling Act of 1939.3.2 For definitions of all other textile terms see TerminologyD123.4.Summary of Test Method4.1 A specimen of wool material is weighed and then driedto constant mass at 105 C 6 2 C in an oven supplied withambient air.The loss in mass is considered moisture andreported as either moisture content or moisture regain.Direc-tions are given for the adjustment of the observed results forany change in the moisture content after sampling and beforedrying.5.Significance and Use5.1 Test Method D2462 for the determination of the mois-ture in wool by distillation with toluene is the preferred methodfor testing wool for moisture for the acceptance testing ofcommercial shipments.If,however,the purchaser and thesupplier agree,Test Method D1576 for the determination of themoisture in wool by oven drying may be used instead.Comparative tests as directed in 5.1.1,may be advisable.5.1.1 In case of a dispute arising from differences inreported test results when using Test Method D1576 for1This test method is under the jurisdiction 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 D1576 13 which waswithdrawn in January 2022 and reinstated in June 2022.DOI:10.1520/D1576-22.2For 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.1acceptance testing of commercial shipments,the purchaser andthe