【英文标准名称】:StandardPracticeforInterpretingGlassFractureSurfaceFeatures
【原文标准名称】:说明玻璃破裂表面特性的标准规范
【标准号】:ASTMC1256-1993(2003)
【标准状态】:现行
【国别】:
【发布日期】:1993
【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】:C14.04
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:裂开;玻璃;识别;说明;镜子;轻雾;龟裂蔓延;破裂试验;规程;破坏;弯曲悬桁;终点失败;断口组织试验;玻璃破裂表面;乱砍;起始点;瓦氏线;坡度
【英文主题词】:breakage;cantilevercurl;crackpropagation;failure;fractograpic;fracture;Fractography;hackle;mirror;mist;origin;scarp;Wallnerline
【摘要】:Fractographyisoftenusedtohelpidentifytheeventsthathaveresultedinthefractureofaglassobject.Thispracticedefinestheappearanceofvariousfracturesurfacefeatures,aswellastheirmethodofformation.Thus,therecanbeacommonunderstandingoftheirrelationshiptothefractureprocessaswellasacommonterminology.1.1Fracturefeaturesonthesurfaceofacrackreflectthenatureandcourseofthefractureeventassociatedwiththebreakageofaglassobject.Thispracticeisaguidetotheidentificationandinterpretationofthesefracturesurfacefeatures.1.2Thepracticedescribesthevariousfracturesurfacefeaturesastotheirappearance,theprocessofformationandtheirsignificance.1.3Thepracticedoesnotprovidetheproceduralinformationnecessaryforacompletefractographicanalysis.Suchinformationisavailableinthegeneralliterature.(SeeGlossaryforsuggestedliterature).
【中国标准分类号】:Q33
【国际标准分类号】:81_040_20
【页数】:7P.;A4
【正文语种】:


【英文标准名称】:Manuallyoperatedthermoplasticgasshutoffsandvalvesingasdistributionsystems
【原文标准名称】:气体分配系统中的手动热塑性气体截流阀及阀门
【标准号】:ASMEB16.40-2002
【标准状态】:作废
【国别】:美国
【发布日期】:2002
【实施或试行日期】:
【发布单位】:美国机械工程师协会(US-ASME)
【起草单位】:ASME
【标准类型】:()
【标准水平】:()
【中文主题词】:定义;试验;作标记;手动的;热塑性聚合物;尺寸;燃气管;气体分配;截止阀;规范(验收);塑料管;气阀
【英文主题词】:Definition;Definitions;Dimensions;Gasdistribution;Gaspipes;Gasvalves;Handoperated;Marking;Plasticpipes;Specification(approval);Stopvalves;Testing;Thermoplasticpolymers
【摘要】:ThisStandardcoversmanuallyoperatedthermoplasticvalvesinnominalsizes1.2through6(asshowninTable5).Thesevalvesaresuitableforusebelowgroundinthermoplasticdistributionmainsandservicelines.ThemaximumpressureatwhichsuchdistributionpipingsystemsmaybeoperatedisinaccordancewiththeCodeofFederalRegulation(CFR)Title49,Part192,TransportationofNaturalandOtherGasbyPipeline;MinimumSafetyStandards,fortemperatrurerangesof.20deg.Fto100deg.F(.29deg.Cto38deg.C).ThisStandardsetsqualificationrequirementsforeachnominalvalvesizeforeachvalvedesignasanecessaryconditionfordemonstratingconformancetothisStandard.ThisStandardsetsrequirementsfornewlymanufacturedvalvesforuseinbelowgroundpipingsystemsfornaturalgas[includessyntheticnaturalgas(SNG)],andliquefiedpetroleum(LP)gases(distributedasavapor,withorwithouttheadmixtureofair)ormixturesthereof.
【中国标准分类号】:Q82
【国际标准分类号】:23_060_20
【页数】:19P.;A4
【正文语种】:英语