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SAE AMS2759/9 Hydrogen Embrittlement Relief (Baking) of Steel Parts

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Product Code:SAE AMS2759/9
Title:Hydrogen Embrittlement Relief (Baking) of Steel Parts
Issuing Committee:Ams B Finishes Processes And Fluids Committee
Scope:This specification covers the requirements for embrittlement relief (baking) of heat treated steel parts to remove hydrogen infused during plating and certain other chemical processing such as stripping, chemical milling, pickling, and etching.This specification is applicable to parts made from carbon, low-alloy, and martensitic stainless steel heat treated to a minimum strength of 180 ksi (1241 MPa) or heat treated to a minimum hardness of 40 HRC or equivalent. It is also applicable to threaded fasteners made from carbon, low-alloy, or martensitic stainless steels heat treated to a minimum strength of 150 ksi (1034 MPa) or 34 HRC or equivalent, parts made from high strength precipitation hardening stainless steels other than A-286, and steel parts which have been case hardened (carburized, nitrided, nitrocarburized, or carbonitrided). See 8.2.
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【英文标准名称】:StandardPracticeforCalculatingtheSuperimposedLoadonWood-frameWallsforStandardFire-ResistanceTests
【原文标准名称】:标准耐火试验用木框架墙超强荷载的计算用标准实施规程
【标准号】:ASTMD6513-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:耐用试验;火灾;耐火性;防火安全;燃烧试验;结构;墙;木材
【英文主题词】:Endurancetests;Fire;Fireresistance;Firesafety;Firetests;Frames;Walls;Wood
【摘要】:
【中国标准分类号】:
【国际标准分类号】:13_220_50;91_060_10
【页数】:5P;A4
【正文语种】:英语


【英文标准名称】:Ambientairquality-StandardgravimetricmeasurementmethodforthedeterminationofthePM2,5massfractionofsuspendedparticulatematter;EnglishversionofDINEN14907
【原文标准名称】:环境空气质量.悬浮颗粒物质的PM2.5质量部分的测定用标准重量分析测量方法
【标准号】:DINEN14907-2005
【标准状态】:现行
【国别】:德国
【发布日期】:2005-11
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:质量浓度;重量分析的;重量分析法;悬浮尘埃;称重;环境空气;测量仪器;抽样方法;空气污染;空气净化;标准参考测量方法;维修;空气质量;测量不确定度;颗粒;质量控制;颗粒物质的测定;质量保证;定义;尘埃;测定;测量
【英文主题词】:Airpollution;Airpurification;Airquality;Ambientair;Definition;Definitions;Determination;Dust;Gravimetric;Gravimetry;Maintenance;Massconcentration;Measurement;Measuringincertainity;Measuringinstruments;Particles;Particulatemattermeasurement;Qualityassurance;Qualitycontrol;Referencemeasuringmethods;Samplingmethods;Suspendeddust;Weighing
【摘要】:ThisEuropeanStandarddescribesastandardmethodfordeterminingthePM215massconcentrationofsuspendedparticulatematterinambientairbysamplingtheparticulatematteronfiltersandweighingthembymeansofabalance.Measurementsaremadeoverasamplingperiodofabout24h,andinlinewiththeDirective.areexpressedaspg/m3,wherethevolumeofairisthevolumeatambientconditionsneartheinletatthetimeofsampling.Therangeofapplicationofthestandardisfrom1pg/m3(i.e.thelimitofdetectionofthestandardmeasurementmethodexpressedasitsuncertainty)upto120pg/m3(i.e.themaximumconcentrationlevelobservedduringthefieldstudyundertakenbyCEN/TC264/WG15tovalidatethestandard).NOTEAlthoughthestandardisnotvalidatedforconcentrationsover120pg/m3itsranaeofapplicationcouldwellbeextendedtocommonlyencounteredambientconcentrationsuptocirca200pg/m3whenusingglassorquartzfibrefilters.Atthesehighconcentrationsandparticulatemassloadingsnofiltercloggingistobeexpected.Alsotheflowratecanbeeasilymaintainedatthenominalsetting.TheequivalenceprocedureinAnnexAspecifiestwoapproaches,dependingonwhetherthecandidatemethoddiffersslightlyorfundamentallyfromthestandardmethod.Intheformercase,involvingonlyslightdifferencesfromthestandardmethod("variationsonatheme")AnnexAprovidesarestrictedproceduretocompareonlythepertinentdifferences,insteadofafullfieldtest.ThisQpartoftheannexservestogivepracticalguidancefordeterminingequivalenceformeasurementmethodscommonlyusedinmonitoringnetworks,andincludesexamplesofcommonvariationstothestandardmethod,suchasdifferentfilterstoringorconditioningproceduresandthevariationofthestandardmethodfortheapplicationasautomatedfilterchanger.Inthelattercase,involvingafullsetoffieldtests,theprocedureservestodetermineequivalenceonlywithintherangeofconditionsunderwhichthefieldtestsarecarriedout.TheequivalencecanbeshowntoholdforconditionsprevailingwithinEuropeancountriesbycarryingoutthefieldtestinsituationscoveringasuitablerangeofrelevantambientparameters(suchasconcentrationandcompositionofthesuspendedparticulatematter,temperature,andhumidity).AlthoughthisEuropeanStandarddoesnotexplicitlyaddressautomaticmonitoringmethodsforthemeasurementofthePM2.5massfractioninambientair,theequivalencetestprocedureinAnnexAappliesbothtonon-automaticandautomaticmethods.
【中国标准分类号】:Z15
【国际标准分类号】:13_040_20
【页数】:29P.;A4
【正文语种】:英语