BS EN 13970-2004 防水用柔性薄板.沥青水蒸气控制层.定义和特性
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来源:标准资料网
【英文标准名称】:Flexiblesheetsforwaterproofing-Bitumenwatervapourcontrollayers-Definitionsandcharacteristics
【原文标准名称】:防水用柔性薄板.沥青水蒸气控制层.定义和特性
【标准号】:BSEN13970-2004
【标准状态】:作废
【国别】:英国
【发布日期】:2005-01-10
【实施或试行日期】:
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:Thisdocumentspecifiesdefinitionsandcharacteristicsofflexiblereinforcedbitumensheetsforwhichtheintendeduseisaswatervapourcontrollayersforbuildings.Itspecifiestherequirementsandtestmethodsandprovidesfortheevaluationofconformityoftheproductswiththerequirementsofthisdocument.
【中国标准分类号】:Q17
【国际标准分类号】:01_040_91;91_100_50
【页数】:26P.;A4
【正文语种】:英语
【英文标准名称】:StandardonCarbonDioxideExtinguishingSystems
【原文标准名称】:二氧化碳灭火系统标准
【标准号】:ANSI/NFPA12-2011
【标准状态】:现行
【国别】:美国
【发布日期】:2011
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:二氧化碳;灭火设备;火灾灭火设备;防火安全性;防火安全;导则;指南;最低要求
【英文主题词】:Carbondioxide;Fireextinguishingequipment;Firesafety;Guidelines;Minimumrequirements
【摘要】:1.1*Scope.1.1.1Thisstandardcontainsminimumrequirementsforcarbondioxidefire-extinguishingsystems.1.1.2Thisstandardincludesonlythenecessaryessentialstomakeitworkableinthehandsofthoseskilledinthisfield.A.1.1PortablecarbondioxideequipmentiscoveredinNFPA10.TheuseofcarbondioxideforinertingiscoveredinNFPA69.
【中国标准分类号】:C84
【国际标准分类号】:13_220_10
【页数】:
【正文语种】:英语
【英文标准名称】:StandardTestMethodforNormalSpectralEmittanceatElevatedTemperaturesofNonconductingSpecimens
【原文标准名称】:升温时非传导样品的正常光谱发射的标准试验方法
【标准号】:ASTME423-1971(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:1971
【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】:E21.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:emittance;infraredemittance;materialradiativeproperty;radiativeheattransfer;spacecraftthermalcontrol;spectralnormalemittance;thermalradiation
【摘要】:Thesignificantfeaturesaretypifiedbyadiscussionofthelimitationsofthetechnique.Withthedescriptionandarrangementgiveninthefollowingportionsofthistestmethod,theinstrumentwillrecorddirectlythenormalspectralemittanceofaspecimen.However,thefollowingconditionsmustbemetwithinacceptabletolerance,orcorrectionsmustbemadeforthespecifiedconditions.Theeffectivetemperaturesofthespecimenandblackbodymustbewithin1Kofeachother.Practicallimitationsarise,however,becausethetemperatureuniformitiesareoftennotbetterthanafewkelvins.Theopticalpathlengthinthetwobeamsmustbeequal,or,preferably,theinstrumentshouldoperateinanonabsorbingatmosphere,inordertoeliminatetheeffectsofdifferentialatmosphericabsorptioninthetwobeams.Measurementsinairareinmanycasesimportant,andwillnotnecessarilygivethesameresultsasinavacuum,thustheequalityoftheopticalpathsfordual-beaminstrumentsbecomesverycritical.Note48212;Verycarefulopticalalignmentofthespectrophotometerisrequiredtominimizedifferencesinabsorptancealongthetwopathsoftheinstrument,andcarefuladjustmentofthechoppertimingtoreducex201C;cross-talkx201D;(theoverlapofthereferenceandsamplesignals)aswellasprecautionstoreducestrayradiationinthespectrophotometerarerequiredtokeepthezerolineflat.Withthebestadjustment,thex201C;100%linex201D;willbeflattowithin3%.Front-surfacemirroropticsmustbeusedthroughout,exceptfortheprisminprismmonochromators,anditshouldbeemphasizedthatequivalentopticalelementsmustbeusedinthetwobeamsinordertoreduceandbalanceattenuationofthebeamsbyabsorptionintheopticalelements.ItisrecommendedthatopticalsurfacesbefreeofSiO2andSiOcoatings:MgF2maybeusedtostabilizemirrorsurfacesforextendedperiodsoftime.Theopticalcharacteristicsofthesecoatingsarecritical,butcanberelaxedifallopticalpathsarefixedduringmeasurementsortheincidentanglesarenotchangedbetweenmodesofoperation(during0%line,100%line,andsamplemeasurements).Itisrecommendedthatallopticalelementsbeadequatelyfilledwithenergy.Thesourceandfieldaperturesofthetwobeamsmustbeequalinordertoensurethatradiantfluxinthetwobeamscomparedbytheapparatuswillpertaintoequalareasofthesourcesandequalsolidanglesofemission.Insomecasesitmaybedesirabletodefinethesolidangleofthesourceandsamplewhencomparingalternativemeasurementtechniques.Theresponseofthedetector-amplifiersystemmustvarylinearlywiththeincidentradiantflux,ormustbecalibratedforlinearity,andcorrectionsmadeforobserveddeviationsfromlinearity.1.1Thistestmethoddescribesanaccuratetechniqueformeasuringthenormalspectralemittanceofelectricallynonconductingmaterialsinthetemperaturerangefrom1000to1800K,andatwavelengthsfrom1to35x03BC;m.Itisparticularlysuitableformeasuringthenormalspectralemittanceofmaterialssuchasceramicoxides,whichhaverelativelylowthermalconductivityandaretranslucenttoappreciabledepths(severalmillimetres)belowthesurface,butwhichbecomeessentiallyopaqueatthicknessesof10mmorless.1.2Thistestmethodrequiresexpensiveequipmentandratherelaborateprecautions,butproducesdatathatareaccuratetowithinafewpercent.Itisparticularlysuitableforresearchlaboratories,wherethehighestprecisionandaccuracyaredesired,andisnotrecommendedforroutineproductionoracceptan......
【中国标准分类号】:V10
【国际标准分类号】:49_025_01
【页数】:9P.;A4
【正文语种】:英语
