1、Designation:D657620Standard Specification forFlexible Cellular Rubber Chemically Blown1This standard is issued under the fixed designation D6576;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 pa
2、rentheses 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 U.S.Department of Defense.1.Scope*1.1 This specification establishes requirements for chemi-cally blown
3、 cellular rubber.1.2 In the case of conflict between the provisions of thisspecification and those of detailed specifications or test meth-ods for a particular product,the latter shall take precedence.1.3 Unless specifically stated otherwise,by agreement be-tween the purchaser and the supplier,all t
4、est methods shall beperformed in accordance with the test methods specified in thisspecification.1.4 The values stated in SI units are to be regarded as thestandard.The inch-pound units given in parentheses are forinformation only.1.5 This standard does not purport to address all of thesafety concer
5、ns,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.1.6 There is no known ISO equivalent to this specification.NOTE1This spec
6、ification was revised using the updated test methodsand specifications in the latest version of Specification D1056.1.7 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment
7、 of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D297 Test Methods for Rubber ProductsChemical Analy-sisD471 Test Method for Rubber PropertyEffect of LiquidsD635 Test Meth
8、od for Rate of Burning and/or Extent andTime of Burning of Plastics in a Horizontal PositionD883 Terminology Relating to PlasticsD1055 Specifications for Flexible Cellular MaterialsLatexFoam(Withdrawn 2014)3D1056 Specification for Flexible Cellular MaterialsSponge or Expanded RubberE176 Terminology
9、of Fire StandardsE177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE456 Terminology Relating to Quality and StatisticsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test MethodE2935 Practice for Conducting Equivalence Testing inLaboratory
10、Applications2.2 SAE Standard:4SAE J 1351-1993 Hot Odor Test for Insulation Materials2.3 Military Standards/Specifications:5MIL STD 105 Sampling Procedures and Tables for Inspec-tion by AttributesMIL STD 129 Marking for Shipment and StorageMIL STD 293 Visual Inspection Guide for Cellular RubberItemsM
11、IL R 6130C Standard Specification for Flexible CellularRubber Chemically Blown2.4 Federal Standards/Specifications:5PPP-B576 Box,Wood,Cleated,Veneer,Paper OverlaidPPP-B591 Box,Fiberboard,Wood-CleatedPPP-B601 Box,Wood,Cleated PlywoodPPP-B621 Box,Wood,Nailed and Lock-CornerPPP-B636 Box,Shipping,Fiberb
12、oard3.Terminology3.1 Terms used in this standard are defined in accordancewith Terminology D883,unless otherwise specified.For terms1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.22 on CellularMaterials-Plastics and
13、 Elastomers.Current edition approved July 1,2020.Published July 2020.Originally approvedin 2000.Last previous edition approved in 2013 as D6576-13.DOI:10.1520/D6576-20.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Boo
14、k 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 Society of Automotive Engineers(SAE),400 CommonwealthDr.,Warrendale,PA 15096-0001,http:/www.sae.or
15、g.5Available from Standardization Documents Order Desk,Bldg.4 Section D,700Robbins Ave.,Philadelphia,PA 19111-5094,Attn:NPODS.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesT
16、his 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.relating to precision and bias and associated issues,the termsused in this standard are defined in accordance with Terminol-ogy E456.For terms relating to fire,the terms used in thisstand