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【英文标准名称】:StandardPracticeforFieldLeakTestingofPolyethylene(PE)PressurePipingSystemsUsingHydrostaticPressure
【原文标准名称】:使用静液压的聚乙烯压力管道系统的现场泄漏试验的标准实施规范
【标准号】:ASTMF2164-2002(2007)
【标准状态】:现行
【国别】:
【发布日期】:2002
【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】:F17.40
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:漏泄试验;聚乙烯;压力管;材料试验;塑料管
【英文主题词】:fieldleaktest;hydrostaticleaktest;leaktest;polyethylenepipe
【摘要】:1.1Thispracticeprovidesinformationonapparatus,safety,pre-testpreparation,andproceduresforconductingfieldtestsofpolyethylenepressurepipingsystemsbyfillingwithaliquidandapplyingpressuretodetermineifleaksexistinthesystem.1.2Thispracticedoesnotaddressleaktestingusingapressurizedgas(pneumatictesting).Forsafetyreasons,somemanufacturersprohibitorrestrictpneumaticpressuretestingoftheirproducts.Failureduringapressureleaktestcanbeexplosive,violent,anddangerous,especiallyifacompressedgasisused.Inacompressedgastest,boththepressurestressonthesystemandtheenergyusedtocompressthegasarereleasedatafailure.Contactcomponentmanufacturersforinformationabouttestingwithgasunderpressure.1.3Thispracticedoesnotapplytoleaktestingofnon-pressure,gravity-flow,negativepressure(vacuum),ornon-thermoplasticpipingsystems.Forfield-testingofplasticgravityflowsewerlines,seeTestMethodF1417.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitswhichareprovidedforinformationonlyandarenotconsideredstandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.AdditionalsafetyinformationispresentedinSectionandthroughoutthisstandard.
【中国标准分类号】:P94
【国际标准分类号】:23_040_20
【页数】:5P.;A4
【正文语种】:


【英文标准名称】:Specificationforhardmetaldiesandassociatedhardmetaltools-Dimensionsandtolerancesofas-sinteredhardmetalpelletsusedinheadingdies
【原文标准名称】:硬质合金模具和配套硬质合金工具规范.第4部分:顶锻模用硬质合金烧结模坯尺寸和公差
【标准号】:BS3821-4-1982
【标准状态】:现行
【国别】:英国
【发布日期】:1982-07-30
【实施或试行日期】:1982-07-30
【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】:尺寸;金属;硬质合金;锻模;烧结产品;丸状材料;冲模
【英文主题词】:Compressionmoulds;Dies(presstools);Dimensionaltolerances;Dimensions;Tools
【摘要】:ThisInternationalStandardlaysdownthedimensionsandtolerancesofas-sinteredhardmetalpelletsusedinheadingdies.NOTES1AsdefinedinISO3252,theterm"hardmetal"maybeusedsynonymouslywith"cementedcarbide".2IntheUnitedStates,theterm"nib"isusedinsteadoftheterm"pellet".
【中国标准分类号】:J46;H72
【国际标准分类号】:25_120_10
【页数】:8P;A4
【正文语种】:英语