您的位置: 标准下载 » 协会标准 » ASTM 美国材料与试验协会 »

ASTM A733-2003 焊接及无缝碳素钢和奥氏体不锈钢管接头标准规范

作者:标准资料网 时间:2024-05-03 02:03:21  浏览:8239   来源:标准资料网
下载地址: 点击此处下载
【英文标准名称】:StandardSpecificationforWeldedandSeamlessCarbonSteelandAusteniticStainlessSteelPipeNipples
【原文标准名称】:焊接及无缝碳素钢和奥氏体不锈钢管接头标准规范
【标准号】:ASTMA733-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:A01.09
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:carbonsteelfittings;pipefittings;pipenipples;stainlesssteelfittings
【摘要】:1.1Thisspecificationcoverstherequirementsforweldedandseamlesscarbonsteelpipenipples,blackandzinc-coated(hot-dipgalvanized),andweldedandseamlessausteniticstainlesssteelpipenipplesinstandardsteelpipesizesfrom1/8to12in.inclusive,instandardorspeciallengths.1.1.1WeldedCarbonSteel8212;Pipenipplesorderedundertheserequirementsareintendedforgeneraluses,asdescribedbySpecificationA53.1.1.2SeamlessCarbonSteel8212;Pipenipplesorderedundertheserequirementsareintendedforgeneralandspecialuses,asdescribedbytheapplicableSpecificationsA53andA106(see4.1.1).1.1.3AusteniticStainlessSteel8212;Pipenipplesorderedundertheserequirementsareintendedforhigh-temperatureandgeneralcorrosionservice,asdescribedbySpecificationA312(see4.1.2).1.1.4Thetextforthisspecificationcontainsnotesand/orfootnotesthatprovideexplanatorymaterial.Suchnotesandfootnotes,excludingthoseintables,donotcontainanymandatorylanguage.
【中国标准分类号】:
【国际标准分类号】:23_040_40
【页数】:4P.;A4
【正文语种】:


下载地址: 点击此处下载
【英文标准名称】:StandardTestMethodforFieldDeterminationofWater(Moisture)ContentofSoilbytheCalciumCarbideGasPressureTester
【原文标准名称】:用碳化钙气压检验器法现场测定土壤中水含量的标准试验方法
【标准号】:ASTMD4944-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:D18.08
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:土壤;含水量;试验;土壤分析
【英文主题词】:acceptancetest;calciumcarbide;gaspressure;moisturecontent;pressure-measuringinstrument;quicktest;soilmoisture;soilwatercontent;watercontent
【摘要】:Thewatercontentofsoilisusedthroughoutgeotechnicalengineeringpractice,bothinthelaboratoryandinthefield.Resultsaresometimesneededwithinashorttimeperiodandinlocationswhereitisnotpracticaltoinstallanovenortotransportsamplestoanoven.Thistestmethodisusedfortheseoccasions.Theresultsofthistesthavebeenusedforfieldcontrolofcompactedembankmentsorotherearthstructuressuchasinthedeterminationofwatercontentforcontrolofsoilmoistureanddrydensitywithinaspecifiedrange.ThistestmethodrequiresspecimensconsistingofsoilhavingallparticlessmallerthantheNo.4sievesize.ThistestmethodmaynotbeasaccurateasotheracceptedmethodssuchasTestMethodD2216.Inaccuraciesmayresultbecausespecimensaretoosmalltoproperlyrepresentthetotalsoil,fromclumpsofsoilnotbreakinguptoexposealltheavailablewatertothereagentandfromotherinherentprocedural,equipmentorprocessinaccuracies.Therefore,othermethodsmaybemoreappropriatewhenhighlyaccurateresultsarerequired,orwhentheuseoftestresultsissensitivetominorvariationsinthevaluesobtained.Note18212;Thequalityoftheresultproducedbythisstandardisdependentonthecompetenceofthepersonnelperformingit,andthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticeD3740aregenerallyconsideredcapableofcompetentandobjectivetesting/sampling/inspection.UsersofthisstandardarecautionedthatcompliancewithPracticeD3740doesnotinitselfensurereliableresults.Reliableresultsdependonmanyfactors;PracticeD3740providesameansofevaluatingsomeofthosefactors.1.1Thistestmethodoutlinesproceduresfordeterminingthewater(moisture)contentofsoilbychemicalreactionusingcalciumcarbideasareagenttoreactwiththeavailablewaterinthesoilproducingagas.Ameasurementismadeofthegaspressureproducedwhenaspecifiedmassofwetormoistsoilisplacedinatestingdevicewithanappropriatevolumeofreagentandmixed.1.2ThistestmethodisnotintendedasareplacementforTestMethodD2216;butasasupplementwhenrapidresultsarerequired,whentestingisdoneinfieldlocations,orwhereanovenisnotpracticalforuse.TestMethodD2216istobeusedasthetestmethodtocompareforaccuracychecksandcorrection.1.3Thistestmethodisapplicableformostsoils.Calciumcarbide,usedasareagent,reactswithwaterasitismixedwiththesoilbyshakingandagitatingwiththeaidofsteelballsintheapparatus.Toproduceaccurateresults,thereagentmustreactwithallthewaterwhichisnotchemicallyhydratedwithsoilmineralsorcompoundsinthesoil.Somehighlyplasticclaysoilsorothersoilsnotfriableenoughtobreakupmaynotproducerepresentativeresultsbecausesomeofthewatermaybetrappedinsidesoilclodsorclumpswhichcannotcomeincontactwiththereagent.Theremaybesomesoilscontainingcertaincompoundsorchemicalsthatwillreactunpredictablywiththereagentandgiveerroneousresults.AnysuchproblemwillbecomeevidentascalibrationorchecktestswithTestMethodD2216aremade.Somesoilscontainingcompoundsormineralsthatdehydratewithheat(suchasgypsum)whicharetohavespecialtemperaturecontrolwithTestMethodD2216maynotbeaffected(dehydrated)inthistestmethod.1.4Thistestmethodislimitedtousingcalciumcarbidemoisturetestequipmentmadefor20g,orlarger,soilspecimensandtotestingsoilwhichcontainsparticlesnolargerthantheNo.4Standardsievesize.Thisstandarddoesnotpurporttoaddres......
【中国标准分类号】:B11
【国际标准分类号】:
【页数】:5P.;A4
【正文语种】:


【英文标准名称】:Harmonizedsystemofqualityassessmentforelectroniccomponents;genericspecification:coldcathodeindicatortubes
【原文标准名称】:电子元件质量评估协调体系.一般规范.第1部分:冷阴极指示管
【标准号】:DIN45983-1-1977
【标准状态】:现行
【国别】:德国
【发布日期】:1977-11
【实施或试行日期】:1977-11
【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】:电子工程;作标记;质量评定;规范(审批);电气工程;电子学;阴极;冷阴极;电子管;元部件;指示管
【英文主题词】:
【摘要】:
【中国标准分类号】:L38
【国际标准分类号】:31_120
【页数】:10P;A4
【正文语种】:德语