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【英文标准名称】:TestMethodsforSaponificationNumberofPetroleumProducts
【原文标准名称】:石油产品皂化值的试验方法
【标准号】:ANSI/ASTMD94-2007
【标准状态】:作废
【国别】:美国
【发布日期】:2007
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:润滑剂;石油产品;皂化值;测试
【英文主题词】:Lubricants;Petroleumproducts;Saponificationnumber;Testing
【摘要】:Thesetestmethodscoverthedeterminationoftheamountofconstituentsinpetroleumproductssuchaslubricants,additives,andtransmissionfluidsthatwillsaponifyundertheconditionsofthetest.Note1-StatementsdefiningthistestanditssignificancewhenappliedtoelectricalinsulatingoilsofmineraloriginwillbefoundinGuideD117.Experiencehasshownthatfortransformeroils,TestMethodD94,modifiedbyuseof0.1MKOHsolutionand0.1MHCl,ismoresuitable.Twotestmethodsaredescribed:MethodA-ColorIndicatorTitration(Sections6-13),andMethodB-PotentiometricTitration(Sections14-23).Becausecompoundsofsulfur,phosphorus,thehalogens,andcertainotherelementsthataresometimesaddedtopetroleumproductsalsoconsumealkaliandacids,theresultsobtainedindicatetheeffectoftheseextraneousmaterialsinadditiontothesaponifiablematerialpresent.Resultsonproductscontainingsuchmaterials,onusedinternal-combustion-enginecrankcaseoils,andonusedturbineoilsmustbeinterpretedwithcaution.Note2-Thematerialsreferredtoabove,whicharenotnormallyconsideredsaponifiablematter,includeinorganicorcertainorganicacids,mostnonalkalisoaps,andsoforth.Thepresenceofsuchmaterialsincreasesthesaponificationnumberabovethatoffattysaponifiablematerialsforwhichthetestmethodisprimarilyintended.Theodorofhydrogensulfideneartheendoftheback-titrationinthesaponificationtestisanindicationthatcertaintypesofreactivesulfurcompoundsarepresentinthesample.Inthecaseofotherreactivesulfur,chlorine,andphosphoruscompoundsandotherinterferingmaterials,nosimpleindicationisgivenduringthetest.Agravimetricdeterminationoftheactualamountoffattyacidsisprobablythemostreliablemethodforsuchcompounds.TestMethodsD128orIPMethod284/86canbeusedtodeterminefattyacidsgravimetrically.ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSections6,7,8,10,15,16,17,and19.
【中国标准分类号】:E30
【国际标准分类号】:75_080
【页数】:
【正文语种】:英语