【英文标准名称】:StandardTestMethodforDroppingPointofWaxes
【原文标准名称】:石蜡滴定的标准试验方法
【标准号】:ASTMD3954-1994(2010)
【标准状态】:现行
【国别】:美国
【发布日期】:1994
【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】:D21.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:droppoint;waxes;ASTMdroppingpoint;Consistency;Droppingpoint;Temperaturetests;Waxes--polish
【摘要】:Waxesdonotgothroughasharpsolid-liquidphasechangewhenheatedandthereforedonothaveatruemeltingpoint.Asthetemperaturerises,waxesgraduallysoftenorbecomelessviscous.Forthisreason,thedeterminationofthesofteningpointmustbemadebyanarbitrarybutcloselydefinedmethodiftestvaluesaretobereproducible.Thistestisusefulindeterminingtheconsistencyofwaxes,andasoneelementinestablishingtheuniformityofshipmentsorsourceofsupply.Thistestmethodhasbeenfoundsuitableforalltypesofwaxesincludingparaffin,microcrystallinepolyethylene,andnaturalwaxes.1.1ThistestmethodcoversthedeterminationoftheASTMdroppingpointforwaxes.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E42
【国际标准分类号】:
【页数】:2P.;A4
【正文语种】:英语