ASTM_D_6576_-_13.pdf

Designation:D657613Standard 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 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 U.S.Department of Defense.1.Scope*1.1 This specification establishes requirements for chemi-cally blown 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 test 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 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 limitations prior to use.1.6 There is no known ISO equivalent to this specification.NOTE1This specification was revised using the updated test methodsand specifications in the latest version of Specification D1056.2.Referenced Documents2.1 ASTM Standards:2D297 Test Methods for Rubber ProductsChemical Analy-sisD471 Test Method for Rubber PropertyEffect of LiquidsD635 Test Method for Rate of Burning and/or Extent andTime of Burning of Plastics in a Horizontal PositionD883 Terminology Relating to PlasticsD1055 Specifications for Flexible Cellular MaterialsLatexFoamD1056 Specification for Flexible Cellular MaterialsSponge or Expanded RubberE177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test Method2.2 SAE Standard:3SAE J 1351-1993 Hot Odor Test for Insulation Materials2.3 Military Standards/Specifications:4MIL 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 RubberItemsMIL R 6130C Standard Specification for Flexible CellularRubber Chemically Blown2.4 Federal Standards/Specifications:4PPP-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,Fiberboard3.Terminology3.1 For definitions of technical terms pertaining to cellularflexible rubber used in this specification,refer to TerminologyD883.3.2 Definitions:3.2.1 cellular materiala generic term for materials con-taining many cells(either open or closed,or both)dispersedthroughout the mass.3.2.2 closed cella product whose cells are totally enclosedby its walls and hence not interconnecting with other cells.3.2.3 open cella product whose cells are not totallyenclosed by its walls and open to the surface,either directly orby interconnecting with other cells.1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.22 on CellularMaterials-Plastics and Elastomers.Current edition approved Nov.15,2013.Published December 2013.Originallyapproved in 2000.Last previous edition approved in 2007 as D6576-07.DOI:10.1520/D6576-13.2For 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.3Available from Society of Automotive Engineers(SAE),400 CommonwealthDr.,Warrendale,PA 15096-0001,http:/www.sae.org.4Available 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 States1 4.Classification4.1 TypesThis specification covers two types of cellularrubber designated as follows:4.1.1 Type IOpen cell(sponge rubber).4.1.2 Type IIClosed cell(expanded rubber).4.2 GradesBoth types are divided into three grades des-ignated by the letters A,B,and C added to the roman numeralprefix.4.2.1 Grade AOil-and flame-resistant.4.2.2 Grade BNo requirements for oil,flame resistance,or low temperature.4.2.3 Grade CLow-temperature resistant(oil and flameresistance not required).4.3 ConditionsEach type and class has been divided intothree different conditions.Each condition is based on a specificrange of firmness as expressed by compression de