【英文标准名称】:StandardTestMethodforSofteningPointofPitch(Cube-in-AirMethod)
【原文标准名称】:沥青软化点的标准试验方法(空气中立方块试验方法)
【标准号】:ASTMD2319/D2319M-1998(2008)e1
【标准状态】:现行
【国别】:美国
【发布日期】:1998
【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】:D02.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:cube-in-air;pitch;softeningpoint;Cube-in-airmethod;Pitchsofteningpoint;Softeningpoint--pitches
【摘要】:Pitchdoesnotgothroughasolid-liquidphasechangewhenheatedandthereforedoesnothaveatruemeltingpoint.Asthetemperatureisraised,pitchsoftensandbecomeslessviscous.Thesofteningpointisarbitrarilydefinedandmustbedeterminedbyacloselycontrolledmethodthatmustbecarefullyfollowediftestresultsaretobereproducible.Thistestmethodisusefulindeterminingtheconsistencyofpitchasoneelementinestablishingtheuniformityofshipmentsandsourcesofsupply.1.1Thistestmethodcoversthedeterminationofthesofteningpointabove80x00B0;C[176x00B0;F]ofpitch.TestMethodD3104givescomparableresults.1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E43
【国际标准分类号】:75_140
【页数】:3P.;A4
【正文语种】:英语