ASTM D128-1998(2008) 润滑脂分析的标准试验方法

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【英文标准名称】:StandardTestMethodsforAnalysisofLubricatingGrease
【原文标准名称】:润滑脂分析的标准试验方法
【标准号】:ASTMD128-1998(2008)
【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.G0.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:analysis;extraction;fatcontent;fluidcontent;freealkalicontent;freefattyacidcontent;glycerincontent;insolublescontent;lubricatinggrease;petroleumoilcontent;soapcontent;Soxhletapparatus;thickenercontent;watercontent;Acidity,al
【摘要】:Thesetestmethodscanbeusedtoidentifyandestimatetheamountofsomeoftheconstituentsoflubricatinggreases.Thesetestmethodsareapplicabletomany,butnotall,greases.Compositionshouldnotbeconsideredashavinganydirectbearingonserviceperformanceunlesssuchcorrelationisestablished.Note28212;Detailsonothertestmethodsforgreaseanalysiscanbefoundinotherreferencematerial.,,1.1Thesetestmethodsforanalysiscovergreasesoftheconventionaltype,whichconsistessentiallyofpetroleumoilandsoap.Theconstituentsthatcanbedeterminedaresoap,unsaponifiablematter(petroleumoil,andsoforth),water,freealkalinity,freefattyacid,fat,glycerin,andinsolubles.Note18212;Anyofthetestmethodsdescribedhereinarebestusedbyanexperiencedgreaseanalystwhomayalsobeabletomakeappropriateadaptationsofthetechniquesasoccasionrequires.1.2AsupplementarytestmethodisprovidedinAppendixX1.Thistestmethodisintendedprimarilyforapplicationtogreasescontainingthickenersthatareessentiallyinsolubleinn-hexane,andtogreasesthatcannotbeanalyzedbyconventionalmethodsbecauseofthepresenceofsuchconstituentsasnonpetroleumfluidsornonsoap-typethickeners,orboth.Insomecases,theseconstituentscanreactwithstrongacidoralkalinesolutions.1.3Thesetestmethodsappearinthefollowingorder:
Sections
AshDetermination
7-11
Insolubles,Soap,Fat,PetroleumOil,andUnsaponifiableMatter
12-20
FreeAlkaliandFreeAcid
21-23
Water
24
Glycerin(Quantitative)
25-29