基本信息
标准名称: | 行星传动耙斗装岩机 |
中标分类: |
矿业 >>
矿山机械设备 >>
采掘设备 |
替代情况: | JB 2378-1984;被JB/T 2378-2004代替 |
发布日期: | |
实施日期: | 1993-01-01 |
首发日期: | |
作废日期: | 2004-11-01 |
出版日期: | |
页数: | 5页 |
适用范围
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前言
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目录
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引用标准
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所属分类: 矿业 矿山机械设备 采掘设备
【英文标准名称】:StandardSpecificationforCorrugatedSteelPipe,PolymerPrecoatedforSewersandDrains
【原文标准名称】:下水道和排水沟用预涂聚合物波纹钢管的标准规范
【标准号】:ASTMA762/A762M-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:
【英文主题词】:corrugatedsteelpipe;drainagepipe;metalliccoatedsteelpipe;polymerprecoated;sewerpipe;Corrugatedsteelsewer/drainpipe--specifications;Metallic-coatedsteelpipe--specifications;Polymercoatings--steel;Sewerpipe(steel)--specifications;St
【摘要】:1.1Thisspecificationcoverspolymerprecoatedcorrugatedsteelpipeintendedforuseforstormwaterdrainage,underdrains,theconstructionofculverts,andsimilaruses.Pipecoveredbythisspecificationisnotnormallyusedfortheconveyanceofsanitaryorindustrialwastes.Thesteelsheetusedinfabricationofthepipehasapolymerprotectivecoatingoverametalliccoatingofzinc,55%aluminum-zincalloy,orzinc-5%aluminum-mischmetalalloy.1.2Thepolymerprecoatingprovidesextraprotectionofthebasemetalagainstcorrosionorabrasion,orboth,inadditiontothatprovidedbythemetalliccoating.Somesevereenvironmentsmaycausecorrosionproblemstoaccessoryitemssuchasrivetsorcouplingbandhardwarethatdoesnothaveapolymercoating.AdditionalprotectionforpolymerprecoatedcorrugatedsteelpipecanbeprovidedbyuseofcoatingsappliedafterfabricationofthepipeasdescribedinSpecificationA849.1.3Thisspecificationdoesnotincluderequirementsforbedding,backfill,ortherelationshipbetweenearthcoverloadandsheetthicknessofthepipe.Experiencehasshownthatthesuccessfulperformanceofthisproductdependsupontheproperselectionofsheetthickness,typeofbeddingandbackfill,controlledmanufactureintheplant,andcareintheinstallation.TheinstallationprocedureisdescribedinPracticeA798.1.4Thisspecificationisapplicabletoordersineitherinch-poundunitsasA762,orinSIunitsasA762M.Inch-poundunitsandSIunitsarenotnecessarilyequivalent.SIunitsareshowninbracketsinthetextforclarity,buttheyaretheapplicablevalueswhenthematerialisorderedtoA762M.
【中国标准分类号】:Q81
【国际标准分类号】:23_040_10
【页数】:10P.;A4
【正文语种】:英语