【英文标准名称】:StandardTestMethodforEvaluatingtheEffectiveSurfaceAreaofZincOxideinRubber
【原文标准名称】:测定橡胶中氧化锌有效表面积的标准试验方法
【标准号】:ASTMD4620-2002(2007)
【标准状态】:现行
【国别】:美国
【发布日期】:2002
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D11.20
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:curemeter;surfacearea;zincoxide;CR(chloroprenerubber);Cureactivation;Effectivesurfaceanalysis;Nitrogenadsorptionsurfacearea;Rubberpropertyanalysis;Surfaceanalysis--rubberchemicals/materials;Vulcanizationcharacteristics;Zincoxide
【摘要】:Thesurfaceareaofzinc-oxideinrubbercansignificantlyaffectcureactivationandvulcanizateproperties.Thespecificsurfaceareaofzinc-oxideisusuallymeasuredbynitrogenabsorptionwhichrequirestheuseofequipmentnotnormallyfoundinrubberlaboratories.Thistestmethodallowsarankingofzinc-oxidesamplesaccordingtotheirsurfaceareaswithrespecttoaknownstandardusingasimplifiedprocedureinvolvingmixingofrubbercompoundsandmeasuringcuretimeswithoscillatingdiskorrotorlesscuremeters.Thistestmethodmaybeusedforqualitycontrol,researchanddevelopmentwork,andcomparisonofdifferentzinc-oxidesamples.1.1Thistestmethodspecifiesthestandardmaterials,mixingprocedure,andtestmethodforrankingzinc-oxidesamplesaccordingtotheirspecificsurfaceareainastandardtestformulabasedonchloroprenerubber(CR).1.2TherankingisbasedonthecuretimeofthestandardCRformulation.1.3Theaccuratesurfaceareacannotbedeterminedbythistestmethod,sincefactorsotherthansurfaceareamayinfluencethecuretimestosomeextent(forexampleacidity,heavymetaltraces,etc.).1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G34
【国际标准分类号】:83_060
【页数】:2P.;A4
【正文语种】:英语