1、Designation:D345312Standard Specification forFlexible Cellular MaterialsUrethane for Furniture andAutomotive Cushioning,Bedding,and Similar Applications1This standard is issued under the fixed designation D3453;the number immediately following the designation indicates the year oforiginal adoption o
2、r,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 Department of Defense.1.Scope*1.1 Thi
3、s specification covers flexible cellular urethane ma-terials intended for such uses as inserts for furniture cushions,mattresses,and similar applications.1.2 This specification provides material and dimensionalrequirements and methods of tests for specific properties ofload bearing,compression set,h
4、umid age resistance,poundingfatigue resistance,support factor and resilience.1.3 This specification includes references to governmentregulations for burning characteristics of flexible cellularmaterial used in specified applications.1.4 The values stated in SI units are to be regarded as thestandard
5、.The values given in parentheses are for informationonly.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
6、of regulatory limitations prior to use.NOTE1There is no equivalent ISO standard.2.Referenced Documents2.1 ASTM Standards:2D3574 Test Methods for Flexible Cellular MaterialsSlab,Bonded,and Molded Urethane FoamsD3675 Test Method for Surface Flammability of FlexibleCellular Materials Using a Radiant He
7、at Energy Source2.2 Other Documents:16CFR1632(Previously DoC FF4-72),Standard for theFlammability of Mattresses3FMVSS 302 DoT Motor Vehicle Safety Standard3DOT Federal Aviation Regulation(FAR),Part 25.853,Para-graph(b),and Appendix F3Simplified Practice Recommendations R2-62 Bedding Prod-ucts and Co
8、mponents(Mattresses,Springs,Bedsteads,and Cots)43.Classification3.1 This specification covers eight grades of flexible cellularmaterial that have been selected for use in accordance withload bearing and general physical properties,Table 1;fourgrades based on pounding-fatigue properties,Table 2;three
9、grades based on cushioning performance properties,Table 3.4.Basis of Purchase4.1 Any product represented as complying with this speci-fication shall meet all the requirements listed herein for itsparticular classification.5.Burning Characteristics5.1 Table 4 lists applicable government regulations o
10、nburning characteristics of material used in specified applica-tions.6.Dimensions6.1 For Use as Mattress Inserts:6.1.1 SizesThe standard thickness and tolerance are speci-fied in Table 5.These sizes have been adopted for mattressinserts to coordinate the insert with mattress ticking and otherbed con
11、structions.The other dimensions are specified in Table7A of Simplified Practice Recommendations R2-62.6.1.2 For Use as Furniture Cushion InsertsThe allowabletolerances on dimensions of furniture cushion inserts shall beas shown in Table 6.1This specification is under the jurisdiction of ASTM Committ
12、ee D20 onPlastics and is the direct responsibility of Subcommittee D20.22 on CellularMaterials-Plastics and Elastomers.Current edition approved Oct.1,2012.Published November 2012.Originallyapproved in 1976.Last previous edition approved in 2007 as D3453-07.DOI:10.1520/D3453-12.2For referenced ASTM s
13、tandards,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 the Superintendent of Documents,U.S.Government PrintingOffice,Washington
14、,DC 20402.4Available from the Clearing House for Federal Scientific and TechnicalInformation,5285 Port Royal Rd.,Springfield,VA 22151.*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
15、 States1 7.Test Methods7.1 The physical tests shall be in accordance with TestMethods D3574.8.Physical Requirements8.1 The material shall conform to the requirements forphysical properties prescribed in Tables 1-3.9.Inspection9.1 Inspection of the material shall be agreed upon inwriting by the purch
16、aser and the seller as part of the purchasecontract.9.2 Testing for conformance to requirements shall be donein accordance with the appropriate sections of Test MethodsD3574.The specific test methods in this reference to be usedfor each test shall be as listed in Tables 1-3,except as specifiedin 9.3.Burning tests in the reference are listed in Table 4.9.3 If a specimen 380 by 380 by 100 mm(15 by 15 by 4 in.)cannot be obtained,an appropriate size,as well as its corre-sponding indentation force de
