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ISO 14965-2000 空气质量非甲烷总烃的测定低温预浓缩和直接火焰离子化检测法

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【英文标准名称】:Airquality-Determinationoftotalnon-methaneorganiccompounds-Cryogenicpreconcentrationanddirectflameionizationdetectionmethod
【原文标准名称】:空气质量非甲烷总烃的测定低温预浓缩和直接火焰离子化检测法
【标准号】:ISO14965-2000
【标准状态】:现行
【国别】:国际
【发布日期】:2000-03
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC146
【标准类型】:()
【标准水平】:()
【中文主题词】:环境空气;含量测定;有机化合物;空气质量;物质的量;电离;浓缩;浓缩;化学分析和试验;浓度(化学);火焰电离;低温的;低温
【英文主题词】:Airquality;Ambientair;Amountsofsubstance;Chemicalanalysisandtesting;Concentration;Concentration(chemical);Cryogenic;Determinationofcontent;Enrichment;Flameionization;Ionization;Lowtemperatures;Organiccompounds
【摘要】:ThisInternationalStandarddescribesaprocedureforsamplinganddeterminingconcentrationsoftotalnon-methanevolatileorganiccompounds(NMVOC)intheambientatmosphere.ThisInternationalStandarddescribesthecollectionofcumulativesamplesinpassivatedstainlesssteelcanistersandsubsequentlaboratoryanalysis.Itdescribesaprocedureforsamplingincanistersatfinalpressuresaboveatmosphericpressure(referredtoaspressurizedsampling).ItemploysacryogenictrappingprocedureforconcentrationoftheNMVOCpriortoanalysis.ThisInternationalStandarddescribesthedeterminationoftheNMVOCbysimpleflameionizationdetection(FID),withoutthegaschromatographiccolumnsandcomplexproceduresnecessaryforspeciesseparation.ThisInternationalStandardisapplicabletocarbonconcentrationsintherangefrom20ppbCto10000ppbC.See12.4forproceduresforloweringtherange.SeveralvariationstothemethoddescribedinthisInternationalStandardarealsopossible;seeclause12.
【中国标准分类号】:Z15
【国际标准分类号】:13_040_20
【页数】:21P;A4
【正文语种】:英语


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【英文标准名称】:StandardSpecificationforVacuum-TreatedAlloySteelForgingsforTurbineRotorDisksandWheels
【原文标准名称】:涡轮机转子盘和轮子用真空处理合金钢铸件的标准规范
【标准号】:ASTMA471/A471M-2009
【标准状态】:现行
【国别】:
【发布日期】:2009
【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】:A01.06
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:脆性转变温度要求;钢铸件;涡轮转子盘;涡轮转子轮子;真空处理低合金钢;发电机材料.涡轮;钢铸件(涡轮).规范;涡轮转子/转轴;真空处理钢铸件.规范
【英文主题词】:FATTrequirement;steelforgings;turbinerotordisks;turbinerotorwheels;vacuum-treatedlowalloysteel;Generatormaterials--turbine;Steelforgings(turbine)--specifications;Turbinerotors/shafts;Vacuumtreatedsteelforgings--specifications
【摘要】:1.1Thisspecificationcoversvacuum-treatedalloysteelforgingsintendedforuseasturbinerotordisksandwheels.1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:J31
【国际标准分类号】:77_140_85
【页数】:5P.;A4
【正文语种】:


【英文标准名称】:Mechanicalfittingsforpolyethylenepipingsystemsforthesupplyofgaseousfuels-Metalfittingsforpipesofnominaloutsidediameterlessthanorequalto63mm
【原文标准名称】:燃气用聚乙烯管道系统的机械管件.标称外径小于或等于63mm的管道用金属管件
【标准号】:BSISO10838-1-2001
【标准状态】:现行
【国别】:英国
【发布日期】:2001-08-15
【实施或试行日期】:2001-08-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:管道配件;塑料管;法兰管件;管道工程系统;螺纹管接头;气体燃料;材料规范;金属;管接头;聚乙烯;塑料;机械零部件;压合接头
【英文主题词】:Diameter;Dimensions;Fittings;Gascircuits;Gaseousfuels;Metallicmaterials;Outsidediameters;PEpipes;Pipefittings;Pipelines;Pipingsystem;Plasticpipes;Polyethylene;Testing;Tightness
【摘要】:ThispartofISO10838specifiesrequirementsandtestmethodsforfull-end-load-resistantmechanicalpipe-jointingsystemsforconnecting,toeachotherortoametalpipeorfitting,polyethylene(PE)pipes,conformingtoISO4437,ofnominaloutsidediameterlessthanorequalto63mm.Inaddition,itspecifiescertaingeneralpropertiesofthematerialfromwhichthesefittingsaremade.ThispartofISO10838specifiesdimensionalrequirementsfor,andtheperformanceof,suchassemblies.Itisapplicabletomechanicalfittingsinwhichallload-bearingelementsofthejointaremetal.TheyareintendedforusewithPEpipesdesignedforthesupplyofgaseousfuels,thesefittingsproducingeitherpermanentjointsorjointswhichcanbedismantled.Ifintendedforassemblywithametalpipeorfitting,suchconnectionsmaycomprisescrewthreads,compressionjoints,orflangedorweldedconnections.ThispartofISO10838isapplicableonlytomechanicalfittingswithnormaloperating-temperaturelimitsbetween-20℃and+40℃,unlessotherwiseagreedbetweeninterestedparties.ItisthepurposeofthispartofISO10838toprovideperformancerequirementsthatwillensurethatmechanicalpipe-jointingsystemswillprovidefullsealingandfullrestraintofthePEpipingsothatthePEpipingwillyieldratherthanpulloutofthemechanicaljointwhensubjectedtotensileforcesorpressure.
【中国标准分类号】:Q82
【国际标准分类号】:23_040_40
【页数】:20P.;A4
【正文语种】:英语