文档简介ASTMD746-2013用冲击法测定塑料及弹性材料脆化温度的试验方法.1Thistestmethodcoversthedeterminationofthetemperatureatwhichplasticsandelastomersexhibitbrittlefailureunderspecifiedimpactconditions.Tworoutineinspectionandacceptanceproceduresarealsoprovided.Note1WhentestingrubbersforimpactbrittlenessuseTestMethodsD2137.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.3Duetothepotentialsafetyandenvironmentalhazardsassociatedwithmercury-filledthermometers,theuseofalternativetemperaturemeasuringdevices(suchasthermocouplesandRTDs)isencouraged.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note2ThistestmethodandISO974(E)aretechnicallyequivalentwhenusingtheTypeBfixtureandtheTypeIIIspecimen,however
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