BS EN 12953-10-2003 火管锅炉.给水和锅炉水质的要求
时间:2024-05-26 16:44:15 来源: 标准资料网 作者：标准资料网 阅读：8850
【英文标准名称】:Shellboilers-Requirementsforfeedwaterandboilerwaterquality
【原文标准名称】:火管锅炉.给水和锅炉水质的要求
【标准号】:BSEN12953-10-2003
【标准状态】:现行
【国别】:英国
【发布日期】:2003-10-14
【实施或试行日期】:2003-10-14
【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】:蒸汽锅炉;装置;设计;给水箱;定义;槽;蒸汽发生器;材料;试验;水质;水管锅炉;给水;质量要求;锅炉用水;产生蒸汽;监测用装置;大锅炉;热风机;生产;规范(验收);设备;质量;大水容量锅炉
【英文主题词】:
【摘要】:ThisPartofthisEuropeanStandardappliestoallshellboilersasdefinedinEN12953-1whichareheatedbycombustionofoneormorefuelsorbyhotgasesforthegenerationofsteamand/orhotwater.ThisPartofthisEuropeanStandardappliestothosecomponentsbetweenthefeedwaterinletandthesteamoutletofthesteamgenerator.Thequalityofthesteamproducedisoutsidethescopeofthisstandard.ThisPartofthisEuropeanStandardaimstoensurethattheboilerisabletobeoperatedtominimizerisktopersonnel,theboilerandassociatedplantcomponentslocatednearit.NOTE1ThispartofthisEuropeanStandarddoesnotaimtoachieveoptimumeconomicoperation.Forcertainpurposes,itwillbemoreappropriatetooptimizethechemicalcharacteristicsinorderto:—increasethethermalefficiency;—increasetheavailabilityandreliabilityoftheplant;—increasethesteampurity;—reducethemaintenancecosts-repair,chemicalcleaning,etc.ThisPartofthisEuropeanStandardsetsoutminimumrequirementsforthespecifictypesofwatertoreducetheriskofcorrosion,sludgeprecipitationorformationofdepositswhichmayleadtoanydamageorotheroperatingproblems.NOTE2ThisPartofthisEuropeanStandardhasbeenpreparedontheassumptionthattheuserofthisEuropeanStandardpossessesasufficientknowledgeoftheconstructionandoperationoftheboileraswellasanadequateappreciationofwaterandsteamchemistry.
【中国标准分类号】:J98
【国际标准分类号】:13_060_25;27_060_30
【页数】:16P;A4
【正文语种】:英语
【英文标准名称】:Microcircuits.Screeningproceduresforintegratedcircuits.Generalrequirements.
【原文标准名称】:微电路.集成电路用屏蔽程序.一般要求
【标准号】:NFC96-883-1985
【标准状态】:现行
【国别】:法国
【发布日期】:1985-04-01
【实施或试行日期】:1985-04-05
【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】:电子设备;电学测量;作标记;电子设备及元件;质量管理;试验;检测;离心力;集成电路;误差检测;缺陷与故障;宏观检查;加速试验;微电子电路;宏观分析;性能试验;热循环试验;电绝缘;试验条件
【英文主题词】:
【摘要】:
【中国标准分类号】:L55
【国际标准分类号】:31_200
【页数】:56P;A4
【正文语种】:其他
【英文标准名称】:Weldingconsumables-Coveredelectrodesformanualmetalarcweldingofnon-alloyandfinegrainsteels-Classification
【原文标准名称】:焊料.非合金钢和细粒钢的手工金属电弧焊接的涂敷焊条.分类
【标准号】:ISO2560-2002
【标准状态】:作废
【国别】:国际
【发布日期】:2002-11
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC44
【标准类型】:()
【标准水平】:()
【中文主题词】:分类系统;符号;非合金的;电弧焊接;钢;锰钢;护套的;金属弧焊;指数;涂剂焊条;细粒钢;细晶粒结构钢;特性;电焊条;电焊条;分类;非合金钢;化学成分
【英文主题词】:All-weldmetals;Arcwelding;Characteristics;Chemicalanalysisandtesting;Chemicalcomposition;Classification;Classificationsystems;Coveredelectrodes;Deliveryconditions;Elongationatfracture;Exponents;Filletwelds;Finegrainsteels;Fine-grainstructuralsteels;Hydrogencontent;Manganesesteels;Manualarcwelding;Marking;Mechanicaltesting;Metal-arcwelding;Notchedbarimpactwork;Postheattreatments;Rodelectrodes;Sheated;Specification(approval);Steels;Strengthofmaterials;Symbols;Tensilestrength;Testingconditions;Unalloyed;Unalloyedsteels;Welding;Weldingelectrodes;Weldingengineering;Weldingfillermetals;Weldingposition;Yieldstrength
【摘要】:ThisInternationalStandardspecifiesrequirementsforclassificationofcoveredelectrodesanddepositedmetalintheas-weldedconditionandinthepost-weldheat-treatedconditionformanualmetalarcweldingofnon-alloyandfinegrainsteelswithaminimumyieldstrengthofupto500N/mmoraminimumtensilestrengthofupto570N/mm.ThisInternationalStandardisacombinedspecificationprovidingforclassificationutilizingasystembasedupontheyieldstrengthandtheaverageimpactenergyof47Jofall-weldmetal,orutilizingasystembaseduponthetensilestrengthandtheaverageimpactenergyof27Jofall-weldmetal.1)Paragraphsandtableswhichcarrythesuffixletter"A"areapplicableonlytocoveredelectrodesclassifiedtothesystembasedupontheyieldstrengthandtheaverageimpactenergyof47Jofall-weldmetalinthisInternationalStandard.2)Paragraphsandtableswhichcarrythesuffixletter"B"areapplicableonlytocoveredelectrodesclassifiedtothesystembaseduponthetensilestrengthandtheaverageimpactenergyof27Jofall-weldmetalinthisInternationalStandard.3)Paragraphsandtableswhichdonothaveeitherthesuffixletter"A"orthesuffixletter"B"areapplicabletoallcoveredelectrodesclassifiedinthisInternationalStandard.
【中国标准分类号】:J33
【国际标准分类号】:25_160_20
【页数】:28P;A4
【正文语种】:英语