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MIL-P-23408B

作者:标准资料网 时间:2024-05-15 04:57:08  浏览:8914   来源:标准资料网
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MIL-P-23408B, MILITARY SPECIFICATION, PLATING: TIN-CADMIUM (ELECTRO-DEPOSITED) (23 AUG 1983)., This specification covers the requirements for three classes of tin-cadmium alloy plating.
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Product Code:SAE AMS2755
Title:Nitriding, Molten Salt Bath (Cancelled Jul 2009)
Issuing Committee:Ams B Finishes Processes And Fluids Committee
Scope:This specification has been declared 鈥淐ANCELLED鈥?by the Aerospace Materials Division, SAE, as of July 2009. By this action, this document will remain listed in the Numerical Section of the Index of Aerospace Material Specifications indicating that it has been 鈥淐ANCELLED鈥?Cancelled specifications are available from SAE.【英文标准名称】:StandardPracticeforRubberIRM901,IRM902,andIRM903ReplacementOilsforASTMNo.1,ASTMNo.2,andASTMNo.3Oils
【原文标准名称】:ASTMNo.1、ASTMNo.2和ASTMNo.3油用橡胶IRM901、IRM2和IRM903替换油的标准实施规程
【标准号】:ASTMD5964-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:D11.15
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:工业用油;润滑剂;油;替换油;橡胶;代替品
【英文主题词】:ASTMoils;immersiontests;IRMoils;referenceoils
【摘要】:Thereferenceimmersionoilsdescribedinthispracticearerequiredforthedevelopmentofoil-resistantrubbercompoundsforuseinenvironmentswherecontactwithpetroleum-basedsolventsandoilsisencountered.Testsfortensilestrength,percentelongationatbreak,hardness,andpercentvolumeswellareperformedafteraspecifiedimmersiontimeperiod(ataspecifiedtemperature)intheevaluationofoil-resistantrubbers.Theresultsofsuchtestingbyrubberproductmanufacturersandtheircustomersareusedtodevelopoil-resistantrubbersorcompounds,orboth.TestingwithASTMOilsNo.2andNo.3isusedtoverifycompliancewithpurchasespecificationswhichreferencetheoil-resistantclassesofrubbersandelastomerslistedinTable6ofClassificationD2000.TheseoilsarealsousedincomparativeperformanceevaluationtestingofO-ringsandO-ringcompoundsascitedinTestMethodsD1414.Theuseofthesereferenceoilsisrequiredforthedevelopmentandselectionofoil-resistantrubbercompoundshavingacceptableoroptimumperformancecharacteristics,orboth.1.1ThispracticecoversthreeimmersionoilstobeusedasreplacementsforASTMNo.1,No.2,andNo.3immersionoilsascalledforinTestMethodD471.TheimmersionoilswillbedesignatedasIRM901asareplacementforASTMNo.1oil,IRM902asareplacementforASTMNo.2oil,andIRM903asareplacementforASTMNo.3oil.ThenewreferenceoilshavebeendevelopedunderanewCommitteeD11policyonreferencematerials(seePracticeD4678forbackgroundonthenewpolicyandprocedures).1.2Theoils,IRM901,IRM902,andIRM903,aresimilarbutnotfullyequivalenttoASTMNo.1,ASTMNo.2,andASTMNo.3oil,respectively.RefertoTable1foradescriptionofthetypicalpropertiesandspecificationsfortheseoils.1.3Thispracticegivesthenecessarybackgroundanddetailsonthechangeoverfromthepreviousoilstothenewoils.SeeAnnexA1foradditionalinformationonthecommercialoilsselectedtoreplaceASTMNo.2andNo.3oilandthetestprogramconductedforthisselectionprocess.ThechangeoverfromASTMtoIRMoilsisproposedintwosteps:1.3.1Step18212;AtransitionphasethatmakesuseoftheEquivalentVolumeSwell(EVS)foreachofthetworeplacementoils.EVS(902)istheASTMNo.2percentvolumeswellvaluecalculatedfromthemeasuredpercentvolumeswellvalueusingIRM902astheimmersionliquid.AsimilarcalculationcanbeusedtocalculatetheanalogousEVS(903)andEVS(903)values.TheEVSvalueisobtainedasacorrectionofthemeasuredIRM901,902,or903percentvolumeswellvalue.TheEVSvaluesmaybeusedtodetermineifvolumeswellspecificationsaremetwhenthespecificationsareexpressedintermsofASTMNo.1,No.2,orNo.3limits,and1.3.2Step28212;AlongertermpolicychangeorconversionofspecificationsfromASTMNo.1,No.2,andNo.3valuestoIRM901,902,and903values.1.4TheEVSvaluesarecalculatedonthebasisofx201C;correctionequationsx201D;derivedfromoneoftwosources.1.4.1CorrectionequationsderivedfromtheresultsofthecomprehensiveevaluationprogramconductedtoselecteachofthetworeplacementoilsfromagroupofthreecandidateoilsforASTMNo.2andNo.3oils.ThisprogramisdescribedinAnnexA1.1.4.2Correctionequationsderivedfromin-housecustomizedorspecifictestingprogramstomakedirectcomparisonsofthevolumeswell(andotherimportantproperties)oftheIRMandASTMoils.Theseprogramsshouldbeconductedineachlaboratoryofthoseorganizationst......
【中国标准分类号】:E30
【国际标准分类号】:75_100
【页数】:8P.;A4
【正文语种】:



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