ISO4263老化试验

ISO4263-2:2003(E)Petroleumandrelatedproducts—Determinationoftheageingbehaviourofinhibitedoilsandfluids—TOSTtestPart2:石油及相关产品老化特性试验---TOSTProcedureforcategoryHFChydraulicFluidsISO4263-2:2003(E)iv©ISO2003—AllrightsreservedForewordISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies(ISOmemberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISOtechnicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhastherighttoberepresentedonthatcommittee.Internationalorganizations,governmentalandnon-governmental,inliaisonwithISO,alsotakepartinthework.ISOcollaboratescloselywiththeInternationalElectrotechnicalCommission(IEC)onallmattersofelectrotechnicalstandardization.InternationalStandardsaredraftedinaccordancewiththerulesgivenintheISO/IECDirectives,Part2.ThemaintaskoftechnicalcommitteesistoprepareInternationalStandards.DraftInternationalStandardsadoptedbythetechnicalcommitteesarecirculatedtothememberbodiesforvoting.PublicationasanInternationalStandardrequiresapprovalbyatleast75%ofthememberbodiescastingavote.Attentionisdrawntothepossibilitythatsomeoftheelementsofthisdocumentmaybethesubjectofpatentrights.ISOshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights.ISO4263-2waspreparedbyTechnicalCommitteeISO/TC28,Petroleumproductsandlubricants.ISO4263consistsofthefollowingparts,underthegeneraltitlePetroleumandrelatedproducts—Determinationoftheageingbehaviourofinhibitedoilsandfluids—TOSTtest:Part1:ProcedureformineraloilsPart2:ProcedureforcategoryHFChydraulicfluidsPart3:AnhydrousprocedureforsynthetichydraulicfluidsPart4:ProcedureforindustrialgearoilsPetroleumandrelatedproducts—Determinationoftheageingbehaviourofinhibitedoilsandfluids—TOSTtest—Part2:ProcedureforcategoryHFChydraulicfluidsWARNING—TheuseofthispartofISO4263mayinvolvehazardousmaterials,operationsandequipment.ThispartofISO4263doesnotpurporttoaddressallofthesafetyproblemsassociatedwithitsuse.ItistheresponsibilityoftheuserofthispartofISO4263toestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1ScopeThispartofISO4263specifiesamethodforthedeterminationoftheageingbehaviourofhydraulicfluidsofcategoryHFCasdefinedinISO6743-4(see[2]intheBibliography)andspecifiedinISO12922(see[3]intheBibliography].Theageingisacceleratedbythepresenceofoxygen,waterandmetalcatalystsatelevatedtemperature,andthedegradationofthefluidisfollowedbychangesinpHvalueandinsolublescontent.OtherpartsofISO4263specifysimilarproceduresforthedeterminationoftheageingbehaviourofmineraloilsandspecifiedcategoriesoffire-resistantfluidsusedinhydraulicandotherapplications.NOTEForthepurposesofthispartofISO4263,theterm“%(m/m)”isusedtorepresentthemassfractionofamaterial.1范围这部分的ISO4263指定测定方法的液压流体的老化的行为类定义ISO6743同轴-4(见[2]中指定的书目),在国际标准化组织(ISO)12922(参见[3]参考书目。加速老化的氧气、水和金属催化剂在升高温度、退化的流体是紧随其后的pH值和insolubles变化的内容。其他部分的ISO4263指定类似的程序的行为的矿物油和老化特定类别的耐火流体用于液压和其他方面的应用。注意本部分的ISO4263,“%(m/m)是用来描述质量分数的一个资料。2Normativereferences标准化参考Thefollowingreferenceddocumentsareindispensablefortheapplicationofthisdocument.Fordatedreferences,onlytheeditioncitedapplies.Forundatedreferences,thelatesteditionofthereferenceddocument(includinganyamendments)applies.ISO3170:—1),Petroleumliquids—ManualsamplingISO3696:1987,Waterforanalyticallaboratoryuse—SpecificationandtestmethodsISO20843:—2),Petroleumandrelatedproducts—DeterminationofpHoffire-resistantfluidswithincategoriesHFAE,HFASandHFC3Principle原理Atestportionisreacted,intheabsenceoflight,at95°Cwithoxygenandasteelandcoppercatalystcoil.在闭光、在95°C下有氧气、钢丝、铜丝催化剂SmallaliquotsofthefluidarewithdrawnatregularintervalsandthepHvalueandinsolublescontentaremeasured.在常规间隔下，取少量试样进行PH值和不溶物的测定。ThetestiscontinueduntilapHof4,0isreached,aninsolublescontentof4,0%(m/m)isexceeded,试验在PH达到4.0，不溶物达到4.0%时停止。ora200hdurationhaselapsed.或者200h的持续试验。4Reagentsandmaterials试剂与材料4.1Water,unlessotherwisespecified,inaccordancewiththerequirementsofgrade2asdefinedinISO3696.41水,除另有规定外,依照《中华人民共和国二年级的要求所定义的ISO3696。Potablewatermeanstapwater,unlessnormalpipedsuppliesarecontaminatedwithparticulateorhighlysolublemineralcontent.饮用水意味着自来水,除非正常管道用品都含有颗粒或高度可溶矿产的内容。4.2Heptane(C7H16),ofminimumpurity99,75%.庚烷4.3Acetone(CH3COCH3),ofgeneralpurposereagentgrade(GPR).丙酮4.4Propan-2-ol(CH3CHOHCH3),ofgeneralpurposereagentgrade(GPR).异丙醇4.5Oxygen,ofminimumpurity99,5%.Suppliedthroughapressure-regulationsystemadequateto氧气maintainthespecifiedflowratethroughoutthetestduration.Supplyfromanoxygencylindershouldbeviaatwo-stageregulationsystemandaneedlevalvetoimprovetheconsistencyofgas-flowregulation.99,5纯度最小的氧气,%。通过pressure-regulation系统提供足够维持特定流量整个测试时间从一个氧气供应应通过二级圆柱和针形阀调节系统的改进气体流量调节的一致性WARNING—Useoxygenonlywithequipmentvalidatedforoxygenservice.Donotallowoilorgrease不允许有油、脂进入tocomeintocontactwithoxygenandcleanandinspectallregulators,gaugesandcontrolequipment.Checktheoxygen-supplysystemregularlyforleaks.Ifaleakissuspected,turnoffimmediatelyandseekqualifiedassistance.4.6Cleaningsolutions洁净处理4.6.1Strongo