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BS EN 13786-2004+A1-2008 丁烷,丙烷或它们的混合物用最大输出压力4巴及以下和100kg/h及以下容积的自动转换阀及其相关安全设备

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【英文标准名称】:Automaticchange-overvalveshavingamaximumoutletpressureofuptoandincluding4barwithacapacityofuptoandincluding100kg/h,andtheirassociatedsafetydevicesforbutane,propaneortheirmixtures
【原文标准名称】:丁烷,丙烷或它们的混合物用最大输出压力4巴及以下和100kg/h及以下容积的自动转换阀及其相关安全设备
【标准号】:BSEN13786-2004+A1-2008
【标准状态】:现行
【国别】:英国
【发布日期】:2004-09-09
【实施或试行日期】:2004-09-09
【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】:自动;丁烷;特性曲线;压缩气体设备;抗压应力;压缩应力;耐腐蚀性;定义;耐久性;定义(术语);气压;气压调速器;气体;煤气;燃气动力装置;初始压力;入口压力;仪器;液化石油气;液化石油气装置;低压;;操作说明书;压力控制;压力调节器安装;压力调节装置;压力调节器装置;压力调节器;丙烷;警告;危险管理;安全;安全性;安全装置;安全工程;安全性工程;安全要求;安全性要求;安全阀;密封件;给定值;规范(验收);;;试验;测试;痕量元素分析;密封性;型式;类型;阀门;容积流量率
【英文主题词】:Automatic;Butane;Characteristiccurves;Compressedgasequipment;Compressionstresses;Corrosionresistance;Definitions;Gaspressure;Gaspressuregovernors;Gases;Gas-powereddevices;Initialpressures;Inletpressure;Instruments;Liquefiedpetroleumgas;Liquefiedpetroleumgasinstallations;Lowpressure;Massflowrates;Operationalinstructions;Pressurecontrol;Pressureregulationinstallations;Pressureregulators;Propane;Safety;Safetydevices;Safetyengineering;Safetyrequirements;Safetyvalves;Seals;Setvalue;Specification(approval);Switchvalves;Testdocuments;Testing;Tightness;Types;Valves;Volumeflowrate
【摘要】:ThisEuropeanStandarddefinestheconstructionalandoperationalcharacteristics,thesafetyrequirementsandtestmethods,andthemarkingofautomaticchangeoverdeviceswithacapacityoflessthanorequalto100kg/handhavingamaximumregulatedpressureoflessthanorequalto4barforbutane,propaneortheirmixturesonlyinthevapourphase.NOTE1bar=105Pa.Liquefiedgasescontainingmethylacetyleneandpropadienearenotcoveredbythisstandard.ThisEuropeanStandardalsocoverssafetydeviceslikelytobefittedontoautomaticchangeoverdevices.ThecharacteristicsofthesedevicesaregiveninannexA.TherequirementsofthisEuropeanStandardgenerallycoverdesignswhereregulationisinonestage,usingasinglediaphragm.Theserequirementsdonotexcludedesignsusingmorethanonediaphragm,providedthatthesediaphragmsareintegratedinasingleautomaticchangeoverdevicescomplyingwiththerequirementsofthisEuropeanStandard.Forspecificusesincaravansandleisurevehicles,theautomaticchangeoverdevicesfunctionmayalsobecarriedoutbyanassemblyofregulators,forminga"automaticchangeoverdevicessystem"asdefinedin3.1.2.Thisstandardcoverssuchanassemblyasfollows:?specialrequirementsforthemanufacture,adjustmentandoperationofregulatorsformingaautomaticchangeoverdevicessystem,aswellasthecorrespondingtestmethodsaregiveninannexB;?exceptforthesespecialrequirements,andunlessotherwisestated,constructionalandperformancecharacteristicsgiveninthebodyofthestandardarealsoapplicabletothedevicesinannexB.Therequirementsapplygenerallytoautomaticchangeoverdeviceusedinlocationswherethetemperaturelikelytobereachedduringuseisbetween-20°Cand+50°C.WhenthedevicesareusedattemperaturesoutsidethisrangetheyshallcomplywithspecialrequirementsdefinedinannexC.Thisstandarddoesnotincludetheinstallationrulesforautomaticchangeoverdevices.Inthismatter,referenceshouldbemadetonationalregulationsinforceinthemembercountries.Thisstandardonlycoverstypetesting.WARNINGNOTICE:ThefiguresinannexesGandHshowthetypesofconnectionsusedaccordingtothecountryofuseoftheregulators.Thetoppartofthesefigures(abovethehorizontalline)appliestotheregulatorandisnormative.Thebottompartofthesefigures(belowthehorizontalline)appliestotheparttobeconnectedtotheregulator.Thisisgivenasaguideforthetestsandisnotnormative.
【中国标准分类号】:J16
【国际标准分类号】:23_060_10
【页数】:146P.;A4
【正文语种】:英语


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基本信息
标准名称:木质活性炭试验方法 亚甲基蓝吸附值的测定
英文名称:Test methods of wooden activated carbon-Determination of methylene blue adsorption
中标分类: 农业、林业 >> 林业 >> 木炭
ICS分类:
替代情况:GB/T 12496.2-1990
发布部门:国家质量技术监督局
发布日期:1999-11-10
实施日期:2000-04-01
首发日期:1990-11-10
作废日期:1900-01-01
主管部门:国家林业局
提出单位: 国家林业局
归口单位:国家林业局
起草单位:中国林科院林产化工所
起草人:施荫锐
出版社:中国标准出版社
出版日期:2000-04-01
页数:3页
适用范围

本标准规定了木质活性炭亚甲基蓝吸附值的试验方法。
本标准适用于木质活性炭。

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引用标准

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所属分类: 农业 林业 林业 木炭
【英文标准名称】:StandardGuideforDeterminingMassPerUnitAreaofElectrodepositedandRelatedCoatingsbyGravimetricandOtherChemicalAnalysisProcedures
【原文标准名称】:重量分析法和其它化学分析法测定电沉积涂层及相关涂层单位面积质量的标准指南
【标准号】:ASTMB767-1988(2010)
【标准状态】:现行
【国别】:
【发布日期】:1988
【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】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:Acceptancecriteria/testing--coatings;Aluminumcoatings;Anodiccoatings;Averagemassperunitarea;Brasselectrodeposition;Cadmiummetals(coating/plating);Chemicalanalysis;Chromatecoatings;Chromiumelectroplating;Coatingthickness;Density--me
【摘要】:Thethicknessofacoatingiscriticaltoitsperformanceandisspecifiedinmanyspecificationscallingforcoatings.Theseproceduresareusedforacceptancetestingandappearinafewspecifications.Coatingthicknessinstrumentsareoftencalibratedwiththicknessstandardsthatarebasedonmassandareameasurements.Theaveragethicknessofacoatingonthemeasuredareacanbecalculatedfromitsmassperunitareaonlyifthedensityofthecoatingmaterialisknown.1.1Thisguideoutlinesageneralmethodfordeterminingthemassperunitareaofelectrodeposited,electroless,mechanically-deposited,vacuum-deposited,anodicoxide,andchemicalconversioncoatingsbygravimetricandotherchemicalanalysisprocedures.1.2Thisguidedeterminestheaveragemassperunitareaoverameasuredarea.1.3Thestrippingmethodscitedaredescribedinspecificationsorintheopenliteratureorhavebeenusedroutinelybyatleastonelaboratory.1.4Theproceduresoutlinedcanbeusedformanycoating-substratecombinations.Theycannotbeusedwherethecoatingcannotbeseparatedfromthesubstratebychemicalorphysicalmeansaswouldbethecaseifwhitebrasswereplatedwithyellowbrass.1.5Inprinciple,theseprocedurescanbeusedtomeasureverythincoatingsortomeasurecoatingsoversmallareas,butnotthincoatingsoversmallareas.Thelimitsdependontherequiredaccuracy.Forexample,2.5mg/cm2ofcoatingmightrequire2.5mgofcoatingcovering1cm2,but0.1mg/cm2ofcoatingwouldrequire25cm2toobtain2.5mgofcoating.1.6ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A29
【国际标准分类号】:25_220_40
【页数】:6P.;A4
【正文语种】: