IEC 60068-2-58-2005 环境试验.第2-58部分:试验.试验Td:表面安装元器件(SMD)用可焊性、耐金属化溶融和耐焊接热的试验方法

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【英文标准名称】:Environmentaltesting-Part2-58:Tests-TestTd:Testmethodsforsolderability,resistancetodissolutionofmetallizationandtosolderingheatofsurfacemountingdevices(SMD)
【原文标准名称】:环境试验.第2-58部分:试验.试验Td:表面安装元器件(SMD)用可焊性、耐金属化溶融和耐焊接热的试验方法
【标准号】:IEC60068-2-58-2005
【标准状态】:现行
【国别】:国际
【发布日期】:2005-02
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/TC91
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:ThispartofIEC60068outlinestestTd,applicabletosurfacemountingdevices(SMD),whichareintendedtomountonsubstrates.Thisstandardprovidesthestandardproceduresforsolderalloyscontaininglead(Pb)andforlead-freesolderalloys.This
【中国标准分类号】:A21
【国际标准分类号】:19_040
【页数】:62P;A4
【正文语种】:英语


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【英文标准名称】:SpecificationforInstallationofgas-firedhotwaterboilersofratedinputsbetween70kW(net)and1.8MW(net)(2ndand3rdfamilygases
【原文标准名称】:额定输入功率在70kW(净功率)和1.8MW(净功率)之间(2类和3类家用煤气)的燃气热水锅炉的安装规范
【标准号】:BS6644-2005+A1-2008
【标准状态】:现行
【国别】:英国
【发布日期】:2005-07-08
【实施或试行日期】:2005-07-08
【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】:锅炉房;锅炉;烟囱;交付使用;冷凝;流量率;烟道;燃气管;燃气供应;燃气动力装置;加热设备;热水锅炉;检验;装配;管;位置;安全阀;选择;尺寸;通气管;通风;二类家用煤气;三类家用煤气
【英文主题词】:Boilerrooms;Boilers;Chimneys;Commissioning;Condensation;Flowrates;Flues;Gaspipes;Gassupply;Gas-powereddevices;Heatingequipment;Hot-waterboilers;Inspection;Installation;Pipes;Position;Safetyvalves;Selection;Size;Ventpipes;Ventilation;2ndfamilygases;3rdfamilygases
【摘要】:ThisBritishStandardspecifiesrequirementsfortheinstallation,includingdesign,inspectionandcommissioning,ofgas-firedhotwaterboilersofnetratedheatinputsexceeding70kWbutnotexceedinganetheatinputof1.8MW.Groupsofboilerswithindividualnetheatinputsof70kWorless,butwithaggregatenetheatinputsinexcessof70kW,arealsocoveredbythisstandard.ThisstandardisapplicabletotheinstallationofboilersthataredesignedtoutilizenormallydistributedgasesofGroupHofthesecondfamily(e.g.naturalgas),andgasesofGroupP(e.g.propane)andGroupB(e.g.butane)ofthethirdfamily.Forthepurposesofthisinstallationstandard,LPG/airmixturesareregardedasthirdfamilygases.Thisstandardisapplicabletotheinstallationofgas-firedhotwaterboilerswithinthescopeof:a)forboilerssuppliedasacompleteassembly,BSEN656orBS5978(allparts);b)forboilerssuppliedasacompleteassemblyandusedinmultipleboilerinstallationswhosetotalnetheatinputexceeds70kW,BSEN297,BSEN483,orBSEN677;c)forboilersandburnersdeliveredseparatelyandassembledonsite:1)theboilershell,BSEN303-1,BSEN12952,BSEN12953BS779,BS855,orBS2790;2)theburner,BSEN676;3)theassembly,BSEN303-3orBS5987-1andBS5978-3.
【中国标准分类号】:J98
【国际标准分类号】:91_140_65
【页数】:52P.;A4
【正文语种】:英语