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BS EN 253-2003+A2-2006 区域供暖管道.直埋式热水供应网用预绝缘连接管道系统.聚氨酯绝热和聚乙烯外部护套钢制给水管的管装配

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【英文标准名称】:Districtheatingpipes—Preinsulatedbondedpipesystemsfordirectlyburiedhotwaternetworks—Pipeassemblyofsteelservicepipe,polyurethanethermalinsulationandoutercasingofpolyethylene
【原文标准名称】:区域供暖管道.直埋式热水供应网用预绝缘连接管道系统.聚氨酯绝热和聚乙烯外部护套钢制给水管的管装配
【标准号】:BSEN253-2003+A2-2006
【标准状态】:作废
【国别】:英国
【发布日期】:2003-02-27
【实施或试行日期】:2003-02-27
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:复合护套管;复合管;定义;远距离供热;区域供暖;发泡剂;热水供应网;套管;鼓箍;长距离加热系统;作标记;管道系统;管道;管道工程系统;聚乙烯;聚氨酯;规范(验收);钢管;钢管道;测试;隔热;地下;水管系统;水管
【英文主题词】:Compositejacketpipes;Compositetubes;Definition;Definitions;Distantheating;Districtheating;Foamingagents;Hotwaternetworks;Jackettubes;Laggingofadrum;Longdistanceheatingsystems;Marking;Pipesystem;Pipelines;Pipeworksystems;Polyethylene;Polyurethane;Specification(approval);Steelpipes;Steeltubes;Testing;Thermalinsulation;Underground;Waterpipesystems;Waterpipes
【摘要】:ThisEuropeanStandardspecifiesrequirementsandtestmethodsforstraightlengthsofprefabricatedthermallyinsulatedpipe-in-pipeassembliesfordirectlyburiedhotwaternetworks,comprisingasteelservicepipefromDN20toDN1200,rigidpolyurethanefoaminsulationandanoutercasingofpolyethylene.Thisstandardappliesonlytoinsulatedpipeassemblies,forcontinuousoperationwithhotwateratvarioustemperaturesupto120°Candoccasionallywithapeaktemperatureupto140°C.TheestimationofexpectedthermallifewithcontinuousoperationatvarioustemperaturesisoutlinedinannexB.
【中国标准分类号】:Q83
【国际标准分类号】:23_040_10;23_040_99
【页数】:54P.;A4
【正文语种】:英语


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【英文标准名称】:StandardTestMethodforMeasurementofCoatingThicknessbyX-RaySpectrometry
【原文标准名称】:用X射线光度法测量镀层厚度的标准试验方法
【标准号】:ASTMB568-1998(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:1998
【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】:B08.10
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:absorption;collimator;emission;filter;ratio;X-ray;Performance--metals/alloysmaterials/applications;Radiationexposure;Substrates--coatingapplications;Surfaceanalysis--electrodeposits/electroplating;Thickness--electrodepositedcoatings;XRF(X
【摘要】:Thisisasensitive,noncontact,andnondestructivemethodformeasuringthecoatingthickness(andinsomecases,coatingcomposition)ofmetallicandsomenonmetalliccoatingsoverarangeofthicknessesfromaslittleas0.01x03BC;mtoasmuchas75x03BC;mdependingonthecoatingandsubstratematerials.Itcanbeusedtomeasurecoatingandbasecombinationsthatarenotreadilymeasuredbyothertechniques.Thecoatingthicknessisanimportantfactorintheperformanceofacoatinginservice.1.1ThistestmethodcoverstheuseofX-rayspectrometrytodeterminethicknessofmetallicandsomenonmetalliccoatings.1.2ThemaximummeasurablethicknessforagivencoatingisthatthicknessbeyondwhichtheintensityofthecharacteristicsecondaryXradiationfromthecoatingorthesubstrateisnolongersensitivetosmallchangesinthickness.1.3Thistestmethodmeasuresthemassofcoatingperunitarea,whichcanalsobeexpressedinunitsoflinearthicknessprovidedthatthedensityofthecoatingisknown.1.4ProblemsofpersonnelprotectionagainstradiationgeneratedinanX-raytubeoremanatingfromaradioisotopesourcearenotcoveredbythistestmethod.Forinformationonthisimportantaspect,referenceshouldbemadetocurrentdocumentsoftheNationalCommitteeonRadiationProtectionandMeasurement,FederalRegister,NuclearRegulatoryCommission,NationalInstituteofStandardsandTechnology(formerlytheNationalBureauofStandards),andtostateandlocalcodesifsuchexist.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A29
【国际标准分类号】:17_040_20
【页数】:8P.;A4
【正文语种】:英语


【英文标准名称】:Animalfeedingstuffs.Determinationofavailablelysine.
【原文标准名称】:饲料.有效赖氨酸的测定
【标准号】:NFV18-103-1985
【标准状态】:现行
【国别】:法国
【发布日期】:1985-05-01
【实施或试行日期】:1985-05-20
【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】:赖氨酸;食品;动物饲料;化学分析和试验;氨基酸;含量测定;化学分析;分子吸收分光光度测定法;蛋白质
【英文主题词】:Animalfeed;Determinationofcontent;Testing;Tests
【摘要】:
【中国标准分类号】:B46
【国际标准分类号】:65_120
【页数】:6P;A4
【正文语种】:其他