ASTM A760/A760M-2010 下水道和排水沟用金属镀层波纹钢管的标准规格
时间:2024-05-13 04:30:13 来源: 标准资料网 作者：标准资料网 阅读：8422
【英文标准名称】:StandardSpecificationforCorrugatedSteelPipe,Metallic-CoatedforSewersandDrains
【原文标准名称】:下水道和排水沟用金属镀层波纹钢管的标准规格
【标准号】:ASTMA760/A760M-2010
【标准状态】:现行
【国别】:
【发布日期】:2010
【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】:A05.17
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:波形钢管;排水管;水压试验;防泄漏接头;塑料涂层金属管;合格试验;污水管;水密接头
【英文主题词】:corrugatedsteelpipe;drainagepipe;hydrostatictesting;leakresistantjoints;metalliccoatedpipe;qualificationtesting;sewerpipe;watertightjoints
【摘要】:1.1Thisspecificationcoverscorrugatedsteelpipeintendedforuseforstormwaterdrainage,underdrains,theconstructionofculverts,andsimilaruses.Pipecoveredbythisspecificationisnotnormallyusedfortheconveyanceofsanitaryorindustrialwastes.Thesteelsheetusedinfabricationofthepipehasaprotectivemetalliccoatingofzinc(galvanizing),aluminum,55%aluminum-zincalloy,orzinc-5%aluminum-mischmetalalloy.1.1.1Steelsheetwithzincandaramidfibercompositecoatingmaybespecifiedforfabricationofpipe.Pipemadefromsheetwiththiscompositecoatingisalwaysfurnishedwithanasphaltcoating.Therefore,therequirementsinthisspecificationshouldbeconsideredasapplyingtoasemifinishedpipe;thefinishedpipemustincludeprovisionsofSpecificationA849.Note18212;Pipefabricatedwithzincandaramidfibercompositecoatedsheetandasphaltpostcoatingmaybeusedforsanitarysewersandindustrialapplications.Petroleumproductsorsimilarmaterialsinthesewereffluentmayaffecttheperformanceoftheasphaltcoating.
【中国标准分类号】:Q81
【国际标准分类号】:23_040_10
【页数】:15P.;A4
【正文语种】:
【英文标准名称】:Spotdrills.
【原文标准名称】:锪孔钻
【标准号】:NFE66-052-1992
【标准状态】:现行
【国别】:法国
【发布日期】:1992-06-01
【实施或试行日期】:1992-06-20
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Cuttingtools;Designations;Dimensions;Drills;Specification;Specifications;Spotdrills;Tools
【摘要】:
【中国标准分类号】:J54
【国际标准分类号】:25_100_30
【页数】:2P;A4
【正文语种】:其他
【英文标准名称】:Exposuretoelectricormagneticfieldsinthelowandintermediatefrequencyrange-Methodsforcalculatingthecurrentdensityandinternalelectricfieldinducedinthehumanbody-Exposuretomagneticfields-2Dmodels
【原文标准名称】:处于低频和中频电场或磁场.人体内感应产生的电流密度和内电场的计算方法.处于磁场中.2维模型
【标准号】:BSEN62226-2-1-2005
【标准状态】:现行
【国别】:英国
【发布日期】:2005-02-11
【实施或试行日期】:2005-02-11
【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】:模型;电流;电击;电流密度;分析;数值法;方程;电力设备;数学计算;生理效应(对人体);磁场;曝光;二维;人体;电场;人;耦合因子;安全;电气安全;电气工程;频率范围;分析方法
【英文主题词】:Analysis;Couplingfactor;Currentdensity;Electriccurrent;Electricfields;Electricshock;Electricalengineering;Electricalinstallations;Electricalsafety;Equations;Exposure;Frequencyranges;Humanbody;Magneticfields;Mathematicalcalculations;Methodsofanalysis;Models;Numericalmethods;People;Physiologicaleffects(humanbody);Safety;Two-dimensional
【摘要】:ThispartofIEC62226introducesthecouplingfactorK,toenableexposureassessmentforcomplexexposuresituations,suchasnon-uniformmagneticfieldorperturbedelectricfield.ThecouplingfactorKhasdifferentphysicalinterpretationsdependingonwhetheritrelatestoelectricormagneticfieldexposure.TheaimofthispartistodefineinmoredetailthiscouplingfactorK,forthecaseofsimplemodelsofthehumanbody,exposedtonon-uniformmagneticfields.Itisthuscalled"couplingfactorfornon-uniformmagneticfield".Allthecalculationsdevelopedinthisdocumentusethelowfrequencyapproximationinwhichdisplacementcurrentsareneglected.Thisapproximationhasbeenvalidatedinthelowfrequencyrangeinthehumanbodywhereparameterεω