ASTM_D_1565_-_81_1990.pdf

Designation:D 1565 81(Reapproved 1990)Standard Specification forFlexible Cellular MaterialsVinyl ChloridePolymers and Copolymers(Open-Cell Foam)1This standard is issued under the fixed designation D 1565;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(e)indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.This specification was prepared jointly by the American Society for Testing and Materials and the Society of the Plastics Industry.1.Scope1.1 This specification covers flexible cellular products con-taining interconnecting cells made of a base material known aspoly(vinyl chloride)or copolymers thereof.1.2 It is intended as a general specification and may need tobe supplemented by detailed specifications or methods of testfor a particular product,in which case the latter would takeprecedence.Reference to methods for testing poly(vinyl chlo-ride)foam products should specifically state the particular testor tests desired.1.3 This standard does not purport to address all of thesafety problems,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.2.Referenced Documents2.1 ASTM Standards:E 145 Specification for Gravity-Convection and Forced-Ventilation Ovens23.Description of Terms Specific to This Standard3.1 vinyl or PVCabbreviated terms used to designatepoly(vinyl chloride)or copolymers thereof.3.2 surface skinthe smooth skin on a foam formed duringmanufacture by contact with the mold,cover plate,or air.3.3 mechanically blown foama foam made by mechani-cally mixing a gas into a base material so as to develop a foamstructure.3.4 chemically blown foama foam made by incorporatinga chemical agent into the base material which on heatingliberates a gas causing foaming of the base materials.3.5 flexiblea descriptive term applied to a cellular organicpolymeric material that will not rupture within 60 s when aspecimen 200 by 25 by 25 mm is bent around a 25-mmdiameter mandrel at a uniform rate of one lap in 5 s in the formof a helix at a temperature between 18 and 29C.3.6 cellular materiala generic term for materials contain-ing many cells(either open,closed,or both)dispersed through-out the mass.4.Classification4.1 Grades of vinyl foam are designated by letters thatidentify the kind of vinyl foam as follows:4.1.1 VCVinyl foam,cored,4.1.2 VUVinyl foam,uncored,and4.1.3 VOVinyl foam,uncored,extra firm.4.2 Digits following the letters indicate the degree offirmness,the softer grades being identified with the lowernumbers and the firmer grades with the higher numbers(seeTable 1).4.3 Suffx Letters may be added singly or in combinationafter any grade designation to indicate additional requirementsbeyond the basic requirements specified in Table 1.Theapproved suffix letters and their significance are as follows:Suffix LettersCWeather Resistance.*DLoad Deflection.*EOil Resistance.*FLow Temperature.*GTear Resistance.*HFlexing Resistance.JAbrasion Resistance.*K1Adhesion to Metal,Made During Moldings.*K2Adhesion,Cemented Bond,Made After Molding.*MFlame Resistance.*PNonstaining.*P1Compatibility with Other Materials.*RResilience.*WDensity.ZSpecial Requirements.*Test method and values shall be as agreed upon between the purchaserand the manufacturer.5.Manufacture5.1 Foam may be produced in sheet,strip,molded,orspecific shapes.The foam articles may be solid or cored.Size,shape,and distribution of cores,if any,shall be at the option ofthe manufacturer,subject to the approval of the purchaser.6.Material and Workmanship6.1 Vinyl foam shall be manufactured from poly(vinyl1This specification is under the jurisdiction of ASTM Committee D-20 onPlastics and is the direct responsibility of Subcommittee D20.22 on CellularPlastics.Current edition approved Nov.27,1981.Published January 1982.Originallypublished as D 1565 58 T.Last previous edition D 1565 76.2Annual Book of ASTM Standards,Vol 14.02.1AMERICAN SOCIETY FOR TESTING AND MATERIALS100 Barr Harbor Dr.,West Conshohocken,PA 19428Reprinted from the Annual Book of ASTM Standards.Copyright ASTMNOTICE:This standard has either been superseded and replaced by a new version or discontinued.Contact ASTM International(www.astm.org)for the latest information.chloride)and necessary compounding ingredients required tofurnish a finished product meeting the requirements of thisspecification.Any special physical properties that may bedesired for specific applications and designated in the indi-vidual product specifications may influence the choice of thetype of poly(vinyl chloride)or other ingredients used.Allmaterials and workmanship shall be in accordance with goodcommercial practice,