Designation:D1912−00(Reapproved2010)StandardTestMethodforCold-CrackResistanceofUpholsteryLeather1ThisstandardisissuedunderthefixeddesignationD1912;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethod2coversthemeasurementofthecold-crackresistanceonalltypesofupholsteryleathers,butespeciallyinthefieldofautomotiveupholstery.3Thistestmethoddoesnotapplytowetblue.1.2Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareprovidedforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMAdjuncts:Greuelrotarycold-foldtestmachine(14drawings,1list)43.SummaryofTestMethod3.1Inthistestmethodthecold-crackresistanceofuphol-steryleatherismeasuredbymeansofamechanically-appliedpressuretoacone-shapedspecimenofleatherafterboththespecimenandthepressure-devicehavebeenconditionedinacarefullycontrolledcoldcabinet.Boththespecimenandthemachineremaininthecoldcabinetduringtesting.4.SignificanceandUse4.1Theresultsarereproducible5andcorrelatewiththecoldimpacttest6andalsocorrelatewithactualpracticeconditions.7Acomparisonofthesignificanceofthistestmethodwithothertestmethodshasalsobeenmade.55.Apparatus5.1GreuelRotaryCold-FoldTestMachine,4,8asshowninFig.1andconsistingoftwotangentialknurledrollersdrivenbyachaindrive.5.2SteelDieorOtherShearingDevice.5.3ColdCabinet,capableofmaintainingtemperaturesfrom−50to+20°F(−45to−6°C)within61°F(0.5°C)andflexibleenoughsothattemperaturescanbeadjustedeasilyandquicklyin5°increments.5.4SpecimenRacks,constructedsothatthespecimensmaybesuspendedintheairbyattachmentatpointCwith...
