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【英文标准名称】:Connectorsforopticalfibresandcables;part11:sectionalspecificationforfibreopticconnector;typeOCCA-PC
【原文标准名称】:光纤和光缆连接器.第11部分:光纤连接器分规范.OCCA-PC型
【标准号】:IEC60874-11-1993
【标准状态】:作废
【国别】:国际
【发布日期】:1993-01
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/SC86B
【标准类型】:()
【标准水平】:()
【中文主题词】:光波导;电气工程;玻璃纤维电缆;插头;分规范
【英文主题词】:sectionalspecification;electricalengineering;opticalwaveguides;electricplugs;glassfibrecables
【摘要】:
【中国标准分类号】:M33
【国际标准分类号】:33_180_20
【页数】:21P;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforMeasuringMoistureVaporEmissionRateofConcreteSubfloorUsingAnhydrousCalciumChloride
【原文标准名称】:使用无水氯化钙测定混凝土毛地板的湿气散发速度的标准试验方法
【标准号】:ASTMF1869-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:F06.40
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:anhydrouscalciumchloride;moisturevaporemissionrate;quantitativecalciumchloride;resilientflooring;RMArefereetest;Anhydrouscalciumchloride;Calciumchloride;Flooring/floorcoveringsystems(concrete);Moistureanalysis--buildingmaterials/
【摘要】:Usethistestmethodtoobtainaquantitativevalueindicatingtherateofmoisturevaporemissionfromaconcretefloorandwhetherornotthatfloorisacceptabletoreceiveresilientfloorcovering.Themoisturevaporemissionrateonlyreflectstheconditionoftheconcreteflooratthetimeofthetest.Allconcretesubfloorsemitsomeamountofmoistureinvaporform.Concretemoistureemissionisanaturalprocessdrivenbyenvironmentalconditions.Allfloorcoveringsaresusceptibletofailurefromexcessivemoisturevaporemissions.Themoisturevaporemittedfromaconcreteslabismeasuredinpounds.Thismeasurementistheequivalentweightofwaterevaporatingfrom1000ft2ofconcretesurfaceina24x2013;hperiod.Thecalciumchloridemoisturetesthasbeentheindustrystandardformakingthisdeterminationandisapractical,well-establishedandacceptedtestofdynamicmoisture.Itwillproducequantifiedresultsdirectlyapplicabletoflooringmanufacturer''sspecifications.Theresultsobtainedreflectonlytheconditionoftheconcreteflooratthattime.1.1Thistestmethodcoversthequantitativedeterminationoftherateofmoisturevaporemittedfrombelow-grade,on-grade,andabove-grade(suspended)bareconcretefloors.1.2Thistestshallnotbeusedtoevaluatetherateofmoisturevaporemittedbylightweightconcretefloorscontaininglightweightaggregate.1.3Thistestshallnotbeusedtoevaluatemoisturevaporemissionsovercoatingsonconcreteoroverpatchingorlevelingcompounds.1.4Thisquantityofmoistureshallbeexpressedastherateofmoisturevaporemission,measuredinpoundsofmoistureovera1000ft2areaduringa24-hperiod.1.5Thistestshallnotbeusedtoevaluatemoistureemissionsovergypsumconcrete.1.6Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpractices,anddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q14
【国际标准分类号】:91_060_30
【页数】:3P.;A4
【正文语种】:英语