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【英文标准名称】:Water-tubeboilersandauxiliaryinstallations-General
【原文标准名称】:水管锅炉和辅助设备.总则
【标准号】:BSEN12952-1-2001
【标准状态】:现行
【国别】:英国
【发布日期】:2002-04-29
【实施或试行日期】:2002-04-29
【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】:消费者与供货者的关系;定义;术语;交付;交货条件;发电站;总论;指南;监测用装置;维护;定单;设备;采购;质量要求;规范(验收);规范;蒸汽锅炉;汽化;调查;容器;水管锅炉
【英文主题词】:Consumer-supplierrelations;Definition;Definitions;Delivery;Deliveryconditions;Electricpowerstations;Generalsection;Guidelines;Installationsinneedofmonitoring;Maintenance;Orders(salesdocuments);Plant;Procurements;Qualityrequirements;Specification(approval);Specifications;Steamboilers;Steamgeneration;Surveys;Vessels;Water-tubeboilers
【摘要】:1GeneralThisEuropeanStandardappliestowater-tubeboilerswithvolumesinexcessof2litresforthegenerationofsteamand/orhotwateratanallowablepressuregreaterthan0,5barandwithatemperatureinexcessof110?aswellasauxiliaryinstallations(otherplantequipment).ThepurposeofthisEuropeanStandardistoensurethatthehazardsassociatedwiththeoperationofwater-tubeboilersarereducedtoaminimumandthatadequateprotectionisprovidedtocontainthehazardsthatstillprevailwhenthewater-tubeboilerisputintoservice.Thisprotectionwillbeachievedbytheproperapplicationofthedesign,manufacturing,testingandinspectionmethodsandtechniquesincorporatedinthevariouspartsofthisEuropeanStandard.Whereappropriate,adequatewarningofresidualhazardsandthepotentialformisusearegiveninthetrainingandoperatinginstructionsandlocaltotheequipmentconcerned(seeprEN12952-8,prEN12952-9andprEN12952-16).2BoilerassemblyForthepurposeofthisstandard,theboilerassemblyincludes:a)thewater-tubeboilerincludingallthepressurepartsfromthefeedwaterinlet(includingtheinletvalve)uptoandincludingthesteamand/orhotwateroutlet(includingtheoutletvalveor,ifthereisnovalve,thefirstcircumfer-entialweldorflangedownsteamoftheoutletheader).Allsuperheaters,reheaters,economizers,theassociatedsafetyaccessoriesandinterconnectingtubingthatareheatedbymeansofthegasesofcombustionandarenotcapableofisolationfromthemainsystembyinterposingshut-offvalves.Additionally,thetubingthatisconnectedtotheboilerinvolvedinservicessuchasdraining,venting,desuper-heating,etc.,uptoandincludingthefirstisolatingvalveinthetubinglinedownstreamoftheboiler.Reheaterswhichareheatedbythefluegasorindependentlyfired,andareseparatelyprovidedwiththeirsafetyaccessoriesincludingallcontrolandsafetysystems.b)isolatablesuperheaters,reheaters,economizersandrelatedinterconnectingtubing;c)theheatsupplyorfiringsystem;d)themeansofpreparingandfeedingthefueltotheboilerincludingthecontrolsystems;e)themeansofprovidingtheboilerwithfeedwaterincludingthecontrolsystem;f)thepressureexpansionvesselsandtanksofhotwatergeneratingplant.3Otherplantequipmenta)theboilersupportingstructuralsteelwork,thethermalinsulationand/orbrickworkandthecasing;b)themeansofprovidingtheboilerwithairincludingtheforceddraughtfansandairpre-heaterswhichareheatedbythegasesofcombustion;c)thefacilitiesformovingfluegasesthroughtheboileruptothestackinlet,includingtheinduceddraughtfansandtheairpollutionreducingequipmentlocatedinthefluegasremovalpath;d)allotherequipmentnecessaryfortheoperationoftheboilerplant.Foradescriptionofthetypesofoperatingsystemsusedforwater-tubeboilerplant,seeprEN12952-7.4ExclusionsThisEuropeanStandarddoesnotapplytothefollowingtypesofboilerplant:a)boilersotherthanstationaryboilers;b)shelltypeboilersincludingelectricalboilers;c)nuclearprimarycircuits,thefailureofwhichcancauseanemissionofradioactivity.
【中国标准分类号】:J98
【国际标准分类号】:27_040
【页数】:20P.;A4
【正文语种】:英语


【英文标准名称】:Photography-Black-and-WhitePictorialStillCameraNegativeFilm/ProcessSystems-DeterminationofISOSpeed
【原文标准名称】:摄影.黑白图片照相机负片/冲洗系统.ISO感光速度的测定
【标准号】:ANSI/ISO6-1993
【标准状态】:作废
【国别】:美国
【发布日期】:1993
【实施或试行日期】:
【发布单位】:美国国家标准学会(ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:摄影乳剂;测量技术;单色摄影胶片;摄影;试验;测试;感光度;灵敏度;曝光;定义;影片;静物摄影;摄影负片;静止图象;单色摄影;iso;感光仪;摄影胶片;摄影的
【英文主题词】:photographicemulsions;measuringtechniques;monochromephotographicfilm;photography;tests;testing;sensitivitytolights;sensitivity;exposure;definition;films;stillpicturephotography;negativephotographicfilms;definitions;stillpictures;monochromephotography;iso;sensitometers;photographicfilm;photographic
【摘要】:
【中国标准分类号】:N41
【国际标准分类号】:37_040_99
【页数】:
【正文语种】:英语