BS EN 524-1-1997 预应力钢丝索用钢带护套.试验方法.形状及尺寸的测定

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【英文标准名称】:Steelstripsheathsforprestressingtendons-Testmethods-Determinationofshapeanddimensions
【原文标准名称】:预应力钢丝索用钢带护套.试验方法.形状及尺寸的测定
【标准号】:BSEN524-1-1997
【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】:体积;结构构件;预应力钢筋;预应力钢丝索;准确度;直径;公式;套筒;外形;形状;高度;钢;钢筋;厚度
【英文主题词】:Construction;Dimensions;Jackettubes;Precision;Prestressedconcrete;Prestressingelements;Profiles;Shape;Steelstrips;Steels;Stripsteels;Testequipment;Testing;Wallthicknesses
【摘要】:ThisEuropeanStandardspecifiestheprocedurefordeterminingtheshapeanddimensionsofsheathsforprestressingtendonswhichcomplywithEN523.
【中国标准分类号】:Q13
【国际标准分类号】:77_140_15
【页数】:8P;A4
【正文语种】:英语


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【英文标准名称】:Methodformeasuringperformanceofportablehouseholdelectricroomaircleaners
【原文标准名称】:便携式家用电子房间空气净化器的性能测量方法
【标准号】:IEC/PAS62587-2008
【标准状态】:现行
【国别】:国际
【发布日期】:2008-09
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC59
【标准类型】:()
【标准水平】:()
【中文主题词】:空气净化设备;空调;连接的;定义;尘埃;电器;电气工程;家用设备;内部的空气;数学计算;测量;测量方法;性能;花粉;便携的;烟;测试;测试条件
【英文主题词】:Aircleaningequipment;Airconditioning;Connected;Definition;Definitions;Dust;Electricalappliances;Electricalengineering;Householdequipment;Inneratmosphere;Mathematicalcalculations;Measurement;Methodsformeasuring;Performance;Pollen;Portable;Smoke;Testing;Testingconditions
【摘要】:ThisPubliclyAvailableSpecificationestablishesasystemofuniform,repeatableproceduresandstandardmethodsformeasuringspecifiedproductcharacteristicsofportablehouseholdelectricroomaircleaners.Thestandardmethodsprovideameanstocompareandevaluatedifferentbrandsofportablehouseholdelectricroomaircleanersregardingcharacteristicssignificanttoproductuse.Thestandardmethodsofmeasurementarenotintendedtoinhibitimprovementandinnovationinproducttesting,designorperformance.ThisstandardmethodappliestoportablehouseholdelectricroomaircleanersasdefinedinClause3.Thisstandardmethodincludesdefinitionsandsafetycharacteristicsofportablehouseholdelectricroomaircleanersofthetypesindicated.Thisstandardmethodmeasurestherelativereductionbytheaircleanerofparticulatemattersuspendedintheairinaspecifiedtestchamber.Italsoprescribesamethodformeasuringtheoperatingpowerandstandbypoweroftheaircleaner.Thisstandardmethodhasdefinedlimitsofmeasurabilitybasedonthestatisticalaccuracyofthemethods.Basedona95%confidencelimit(2standarddeviations),acleanairdeliveryrate(CADR)(see3.5)cannotbedistinguishedbetweenzero(0)andaCADRratinglessthanthoseCADRlimitsshownbelow.Therefore,thisPASonlyappliestoaircleanerswithminimumCADRratingsof:DustCADR=10cfmCigarettesmokeCADR=10cfmPollenCADR=25cfmThemaximumCADRvaluesaredeterminedbasedontheoreticalmaximumlimits.Thetheoreticalmaximumlimitsaredeterminedbythemaximumnumberofinitialavailableparticles,theacceptableminimumnumberofavailableparticles,anaveragebackgroundnaturaldecayrate(fromstatisticalstudy),thesizeofthechamber,andtheavailableminimumexperimenttime.CADRvaluesgreaterthanthoselistedwillnothavethenecessarystatisticaldatarequiredbythismethod.Therefore,thedocumentonlyappliestoaircleanerswithmaximumCADRratingsof:DustCADR=400cfmCigarettesmokeCADR=450cfmPollenCADR=450cfmTheprecisionofthisdocumentasbasedona0CADRaircleanerexpressedas2standarddeviationlimits(95%)are:DustCADR=±10cfmCigaretteSmokeCADR=±10cfmPollenCADR=±25cfm
【中国标准分类号】:Q76
【国际标准分类号】:13_040_20;91_140_30
【页数】:43P;A4
【正文语种】:英语


MIL-W-46154, MILITARY SPECIFICATION: WELDING, RESISTANCE, SPOT AND PROJECTION FOR FABRICATING ASSEMBLIES OF CARBON STEEL SHEETS (20 OCT 1970)., This specification covers the spot and projection resistance welding of carbon steel sheet fabricated assemblies in the carbon range of 0.40 to 0.60 percent (see 4.1 and 8.1).