BS EN 144-2-1999 呼吸保护装置.气瓶阀.出口连接

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【英文标准名称】:Respiratoryprotectivedevices-Gascylindervalves-Outletconnections
【原文标准名称】:呼吸保护装置.气瓶阀.出口连接
【标准号】:BSEN144-2-1999
【标准状态】:现行
【国别】:英国
【发布日期】:1999-03-15
【实施或试行日期】:1999-03-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:压力调节器;氧;作标记;呼吸装置;出口接头;氮;储气瓶;螺纹;尺寸;压力;螺纹零件;呼吸器;尺寸公差;阀门;空气;气阀
【英文主题词】:Connectionpieces;Connections;Dimensions;Exits;Fasteners;Finemechanics;Gascylindervalves;Gascylinders;Pressureregulators;Respirators;Screwedconnections;Tolerances(measurement);Valves
【摘要】:ThisEuropeanStandardisapplicabletoathreadconnectionusedfortheconnectionbetweenagascylindervalveandapressurereducerforrespiratoryprotectivedevicesexceptthosefordivingcontainingbreathableair,oxygenoroxygen/nitrogen.Itspecifiesthedimensionsandtolerancesforconnectionswhichareusedforrespiratoryprotectivedevices.
【中国标准分类号】:C73
【国际标准分类号】:13_340_30
【页数】:12P;A4
【正文语种】:英语

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上一篇: DIN EN 12934-1999 羽毛和羽绒.作为单一填充料的加工羽毛和绒毛的成分标签
下一篇: BS EN 135-1999 呼吸保护装置.等义术语表

【英文标准名称】:StandardTestMethodsforDeterminationofNickel,Vanadium,Iron,andSodiuminCrudeOilsandResidualFuelsbyFlameAtomicAbsorptionSpectrometry
【原文标准名称】:火焰原子吸收分光光度法测定原油和残余燃料中镍、钒、铁和钠含量的标准试验方法
【标准号】:ASTMD5863-2000a(2005)
【标准状态】:现行
【国别】:
【发布日期】:2000
【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】:D02.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:钠含量;液体燃料;钒含量;原油;原子吸收光谱测定法;铁含量;渣油;试验方法;石油产品;镍含量;试验
【英文主题词】:AAS;atomicabsorptionspectrometry;iron;nickel;sodium;vanadium
【摘要】:Whenfuelsarecombusted,metalspresentinthefuelscanformlowmeltingcompoundsthatarecorrosivetometalparts.Metalspresentattracelevelsinpetroleumcandeactivatecatalystsduringprocessing.Thesetestmethodsprovideameansofquantitativelydeterminingtheconcentrationsofvanadium,nickel,iron,andsodium.Thus,thesetestmethodscanbeusedtoaidindeterminingthequalityandvalueofthecrudeoilandresidualoil.1.1Thesetestmethodscoverthedeterminationofnickel,vanadium,iron,andsodiumincrudeoilsandresidualfuelsbyflameatomicabsorptionspectrometry(AAS).Twodifferenttestmethodsarepresented.1.2TestMethodA,Sections-FlameAASisusedtoanalyzeasamplethatisdecomposedwithacidforthedeterminationoftotalNi,V,andFe.1.3TestMethodB,Sections-FlameAASisusedtoanalyzeasampledilutedwithanorganicsolventforthedeterminationofNi,V,andNa.Thistestmethodusesoil-solublemetalsforcalibrationtodeterminedissolvedmetalsanddoesnotpurporttoquantitativelydeterminenordetectinsolubleparticulates.Hence,thistestmethodmayunderestimatethemetalcontent,especiallysodium,presentasinorganicsodiumsalts.1.4Theconcentrationrangescoveredbythesetestmethodsaredeterminedbythesensitivityoftheinstruments,theamountofsampletakenforanalysis,andthedilutionvolume.AspecificstatementisgiveninNote0.1.5Foreachelement,eachtestmethodhasitsownuniqueprecision.Theusercanselecttheappropriatetestmethodbasedontheprecisionrequiredforthespecificanalysis.1.6ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Specificwarningstatementsaregivenin7.1,8.2,8.5,102,10.4,and15.1.
【中国标准分类号】:E21
【国际标准分类号】:75_040
【页数】:7P.;A4
【正文语种】:

Product Code:SAE J817/2
Title:Engineering Design Serviceability Guidelines--Construction and Industrial Machinery--Maintainability Index--Off-Road Work Machines (Cancelled Dec 2009)
Issuing Committee:Machine Technical Steering Committee
Scope:This SAE Information Report establishes a point system that encourages ease of maintenance actions on off-road work machines. The point system minimizes subjectivity in evaluating maintainability as defined in SAE J817/1.