【英文标准名称】:Thermalinsulatingproductsforbuildingapplications-Determinationoflongtermwaterabsorptionbydiffusion
【原文标准名称】:建筑用绝热产品.长期弥散吸水性测定
【标准号】:BSEN12088-1997
【标准状态】:现行
【国别】:英国
【发布日期】:1997-11-15
【实施或试行日期】:1997-11-15
【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】:试验条件;吸水试验;试样制备;试样;隔热;建筑物;施工材料;报告;试验设备;绝热材料
【英文主题词】:
【摘要】:ThisEuropeanStandardspecifiestheequipmentandproceduresfordeterminingthelongtermwaterabsorptionoftestspecimensbydiffusion.Itisapplicabletothermalinsulatingproducts.Itisintendedtosimulatethewaterabsorptionofproductssubjectedtohighrelativehumidities,approximatingto100%,onbothsidesandsubjectedtoawatervapourpressuregradientforalongperiodoftimee.g.invertedrooforunprotectedgroundinsulation.Thetestisnotapplicableforalltypesofthermalinsulatingproducts.Theproductstandardshouldstateforwhichofitsproducts,ifany,thistestisapplicable.NOTE.Forunprotectedgroundinsulationthetemperatureof50℃mightbereplacedbyalowertemperature,whenmoredataisavailable.
【中国标准分类号】:Q25
【国际标准分类号】:91_100_60
【页数】:10P;A4
【正文语种】:英语
基本信息
标准名称: | 食品安全国家标准 食品添加剂 山梨醇酐单油酸酯(司盘80) |
中标分类: |
食品 >>
食品综合 >>
卫生、安全、劳动保护 |
替代情况: | 替代GB 13482-2010 |
发布部门: | 中华人民共和国卫生部 |
发布日期: | 2011-11-21 |
实施日期: | 2011-12-21 |
首发日期: | |
作废日期: | |
出版社: | 中国标准出版社 |
出版日期: | 2011-12-21 |
页数: | 12页 |
适用范围
本标准适用于以油酸与失水山梨醇为原料,经酯化反应制得的食品添加剂山梨醇酐单油酸酯(司盘80)。
前言
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目录
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引用标准
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所属分类: 食品 食品综合 卫生 安全 劳动保护
【英文标准名称】:Railwayapplications-Insulationcoordination-Basicrequirements-Clearancesandcreepagedistancesforallelectricalandelectronicequipment
【原文标准名称】:铁路设施.绝缘协调.基本要求.所有电气和电子设备的余隙距离和蠕变距离
【标准号】:BSEN50124-1-2001
【标准状态】:作废
【国别】:英国
【发布日期】:2001-05-15
【实施或试行日期】:2001-05-15
【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】:电气工程;电子设备及元件;漏电路径;铁路设备;电绝缘;余隙距离;信号;电气设备;铁道车辆
【英文主题词】:Applications;Clearances;Creepagedistances;Definition;Definitions;Dimensioning;Dimensions;Electricpowersystems;Electricalengineering;Electricalequipment;Electricalinsulation;Electrically-operateddevices;Electronically-operateddevices;Equipment;Guidebooks;Insulationcoordination;Insulationvoltage;Leakagepaths;Measurement;Railtransport;Railwayapplications;Railwayvehicles;Railways;Signals;Specification(approval);Testing;Testingvoltages;Use;Vehicles
【摘要】:Thewholedocumentdealswithinsulationcoordinationinrailways.Itappliestoequipmentforuseinsignalling,rollingstockandfixedinstallationsupto2000mabovesealevel.Insulationcoordinationisconcernedwiththeselection,dimensioningandcorrelationofinsulationbothwithinandbetweenitemsofequipment.Indimensioninginsulation,electricalstressesandenvironmentalconditionsaretakenintoaccount.Forthesameconditionsandstressesthesedimensionsarethesame.Anobjectiveofinsulationcoordinationistoavoidunnecessaryoverdimensioningofinsulation.Thisstandardspecifies:-requirementsforclearancesandcreepagedistancesforequipment;-generalrequirementsfortestspertainingtoinsulationcoordination.Thetermequipmentrelatestoasectionasdefinedin1.3.1.3:itmayapplytoasystem,asub-system,anapparatus,apartofanapparatus,oraphysicalrealizationofanequipotentialline.Thisstandarddoesnotdealwith:-distancesthroughsolidorliquidinsulation;-distancesthroughgasesotherthanair;-distancesthroughairnotatatmosphericpressure;-equipmentusedunderextremeconditions.Productstandardshavetoalignwiththisgenericstandard.However,theymayrequire,withjustification,differentrequirementsduetosafetyand/orreliabilityreasons,e.g.forsignalling,and/orparticularoperatingconditionsoftheequipmentitself,e.g.overheadlineswhichhavetocomplytoEN50119.Thisstandardalsogivesprovisionsfordielectrictests(typetestsorroutinetests)onequipment(seeannexB).NOTEForsafetycriticalsystems,specificrequirementsareneeded.TheserequirementswillberesolvedintheproductspecificsignallingstandardEN50129(inpreparation).
【中国标准分类号】:S04
【国际标准分类号】:
【页数】:52P;A4
【正文语种】:英语