基本信息
标准名称: | 十字槽盘头自攻螺钉和大垫圈组合件 |
英文名称: | Cross recessed pan head tapping screw and large plain washer assemblies |
中标分类: |
机械 >>
通用零部件 >>
紧固件 |
ICS分类: |
机械系统和通用件 >>
紧固件
|
替代情况: | 被GB/T 9074.18-2002代替 |
发布日期: | 1988-04-16 |
实施日期: | 1989-01-01 |
首发日期: | 1900-01-01 |
作废日期: | 2003-06-01 |
起草单位: | 机械部标准化所 |
出版日期: | 1900-01-01 |
页数: | 3页 |
适用范围
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前言
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引用标准
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所属分类: 机械 通用零部件 紧固件 机械系统和通用件 紧固件
【英文标准名称】:Cathodicprotectionforsteeloffshorefloatingstructures
【原文标准名称】:近海浮式钢制结构件的阴极保护
【标准号】:BSEN13173-2001
【标准状态】:现行
【国别】:英国
【发布日期】:2001-06-15
【实施或试行日期】:2001-06-15
【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】:海工建筑物;海水;近海建设工程;浮式建筑物;水下建筑物;阴极保护;防腐蚀;钢
【英文主题词】:
【摘要】:ThisEuropeanStandarddefinesthemeanstobeusedtocathodicallyprotectthesubmergedmetallicsurfacesofsteeloffshorefloatingstructuresandappurtenancesinseawaterandsalinemud.1StructuresThisEuropeanStandardcoversthecathodicprotectionoftheexternalsurfaceofoffshorefloatingstructureswhicharestaticduringtheirusualoperatingconditions.Thisessentiallyincludes:barges,jack-ups,semi-submersibleplatforms,storagetankers,buoys,etc.Italsocoversthesubmergedareasofappurtenances,suchaschains,attachedtothestructure,whenthesearenotelectricallyisolatedfromthestructure.Itdoesnotcoverthecathodicprotectionofships,fixedoffshorestructures,elongatedstructures(pipelines,cables)orharbourinstallations,whicharecoveredbyotherstandards.ThisEuropeanStandardconcernsonlythecathodicprotectionofexternalsurfacesimmersedinseawater,includingseachestsandwaterintakesuptothefirstvalve.ThisEuropeanStandarddoesnotincludetheinternalprotectionofsurfacesofanycomponentssuchasballasttanksandhullinternalsoffloatingstructures.2MaterialsThisEuropeanStandardcoversthecathodicprotectionofstructuresfabricatedprincipallyfrombareorcoatedcarbonmanganesesteelsAssomepartsofthestructuremaybemadeofmetallicmaterialsotherthancarbonmanganesesteels,thecathodicprotectionsystemshouldbedesignedtoensurethatthereisacompletecontroloveranygalvaniccouplingandminimiserisksduetohydrogenembrittlementorhydrogeninducedcracking(seeEN12473).ThisEuropeanStandarddoesnotcoverconcretestructures.3EnvironmentThisEuropeanStandardisapplicableforthewholesubmergedzoneinseawater,brackishwaters,salinemudwhichcannormallybefoundwherethefloatingstructureisanchored,mooredormoving.ThisEuropeanStandardisalsoapplicabletoappurtenanceswhichmaybeincontactwithmuds(e.g.chains).Forsurfaceswhicharealternatelyimmersedandexposedtotheatmosphere,thecathodicprotectionisonlyeffectivewhentheimmersiontimeissufficientlylongforthesteeltobecomepolarised.4SafetyandenvironmentprotectionThisEuropeanStandarddoesnotcoversafetyandenvironmentalprotectionaspectsassociatedwithcathodicprotection.Therelevantnationalorinternationalregulationsshallapply.
【中国标准分类号】:A29
【国际标准分类号】:47_020_05;77_060
【页数】:28P;A4
【正文语种】:英语