1、Designation:D1573/D1573M95(Reapproved 2017)Standard Test Method forHeat Aging of Asbestos Textiles1This standard is issued under the fixed designation D1573/D1573M;the number immediately following the designation indicates theyear of original adoption or,in the case of revision,the year of last revi
2、sion.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method covers the heat aging of asbestostextiles.It may be used to determine the resistance to thedeterioration of tensile
3、 strength at temperatures up to 450C800F.1.2 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two syste
4、ms may result in non-conformancewith the standard.1.3 WarningBreathing of asbestos dust is hazardous.Asbestos and asbestos products present demonstrated healthrisks for users and for those with whom they come into contact.In addition to other precautions,when working with asbestos-cement products,mi
5、nimize the dust that results.For informa-tion on the safe use of chrysoltile asbestos,refer to“Safe Useof Chrysotile Asbestos:A Manual on Preventive and ControlMeasures.”21.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of
6、 the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.For specific safetyhazard,see 1.3.1.5 This international standard was developed in accor-dance with internationally recognized principles on standa
7、rd-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:3D123 Terminology Relating to TextilesD1571 Specific
8、ation for Woven Asbestos ClothD1682 Test Method for Breaking Load and Elongation ofTextile Fabric(Withdrawn 1992)4D2946 Terminology for Asbestos and AsbestosCementProducts3.Terminology3.1 For textile terms,refer to Terminology D123.Forasbestos terms,refer to Terminology D2946.4.Significance and Use4
9、.1 This test method covers the evaluation of asbestostextiles with regard to(1)quality and(2)elevated temperatureserviceability characteristics.Since asbestos textiles are usu-ally composed of blends of asbestos with cotton or otherorganic carrier fibers,the latter being present in amounts up to25%,
10、temperatures above 150C 300F will promote thedegradation of the cotton content and will reduce the structuralreinforcement derived therefrom.In the higher grade asbestostextiles,wherein little or no carrier fibers are used and in whichthe longer asbestos fibers are necessary if a satisfactory yarn i
11、sto be produced,the degradation in strength resulting fromheat-aging up to 540C 1000F is low.In the case of thelower grade asbestos textiles,however,wherein amounts from15 to 25%carrier fibers are incorporated,asbestos fibershaving shorter lengths may be utilized.Under the relativelylow service temp
12、eratures to which such materials may besubjected,neither the cotton nor the cloth properties are greatlyaffected.However,the strength-imparting influence of thecarrier fibers is reduced at elevated temperatures and theentwining properties of the shorter asbestos fibers primarily1This test method is
13、under the jurisdiction of ASTM Committee C17 onFiber-Reinforced Cement Products and is the direct responsibility of C17.03 onAsbestos-Cement Sheet Products and Accessories.Current edition approved June 1,2017.Published July 2017.Originally approvedin 1958.Last previous edition approved in 2009 as D1
14、573/D1573M 95(2009)1.DOI:10.1520/D1573_D1573M-95R17.2Available from The Asbestos Institute,http:/ 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 Summa
15、ry page onthe ASTM website.4The 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 reco
16、gnized 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.1 serve to establish the resultant tensile strength and otherphysical properties of the textile.In view of this,elevatedtemperature tests may serve to indicate the asbestos fiber gradeor quality that may be used in a textile construction.4.2 Another use and perhaps m
