ANSI IT2.4-1987 摄影(感光学).航空照相用黑白胶片.IS0感光度和平均梯度的测定ANSI/ISO7829-1986.ANSI/NAPMIT2.4-1987
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【英文标准名称】:Photography(Sensitometry)-Black-and-WhiteAerialCameraFilms-DeterminationofIS0SpeedandAverageGradientANSI/ISO7829-1986;ANSI/NAPMIT2.4-1987
【原文标准名称】:摄影(感光学).航空照相用黑白胶片.IS0感光度和平均梯度的测定ANSI/ISO7829-1986.ANSI/NAPMIT2.4-1987
【标准号】:ANSIIT2.4-1987
【标准状态】:现行
【国别】:美国
【发布日期】:1987-05-28
【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】:
【英文主题词】:
【摘要】:ThisstandardspecifiesthemethodfordeterminingtheISOspeedandISOaveragegradientofblack-and-whitenegativecamerafilm-processcombinationsusedinaerialphotography.
【中国标准分类号】:G80
【国际标准分类号】:37_040_20
【页数】:
【正文语种】:英语
【英文标准名称】:StandardTestMethodsforSolarEnergyTransmittanceandReflectance(Terrestrial)ofSheetMaterials
【原文标准名称】:簿板材料的太阳能传播和反射的试验方法
【标准号】:ASTME424-1971(2007)
【标准状态】:现行
【国别】:
【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】:E44.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:透射率;箔;太阳能;试验;塑料
【英文主题词】:pyranometer;reflectance;solarenergy;spectrophotometer;terrestrialreflectance;transmittance
【摘要】:Solar-energytransmittanceandreflectanceareimportantfactorsintheheatadmissionthroughfenestration,mostcommonlythroughglassorplastics.(SeeAppendixX3.)Thesemethodsprovideameansofmeasuringthesefactorsunderfixedconditionsofincidenceandviewing.Whilethedatamaybeofassistancetodesignersintheselectionandspecificationofglazingmaterials,thesolar-energytransmittanceandreflectancearenotsufficienttodefinetherateofheattransferwithoutinformationonotherimportantfactors.Themethodshavebeenfoundpracticalforbothtransparentandtranslucentmaterialsaswellasforthosewithtransmittancesreducedbyhighlyreflectivecoatings.MethodBisparticularlysuitableforthemeasurementoftransmittanceofinhomogeneous,patterned,orcorrugatedmaterialssincethetransmittanceisaveragedoveralargearea.1.1Thesetestmethodscoverthemeasurementofsolarenergytransmittanceandreflectance(terrestrial)ofmaterialsinsheetform.MethodA,usingaspectrophotometer,isapplicableforbothtransmittanceandreflectanceandistherefereemethod.MethodBisapplicableonlyformeasurementoftransmittanceusingapyranometerinanenclosureandthesunastheenergysource.SpecimensforMethodAarelimitedinsizebythegeometryofthespectrophotometerwhileMethodBrequiresaspecimen0.61m2(2ft2).Forthematerialsstudiedbythedraftingtaskgroup,bothtestmethodsgiveessentiallyequivalentresults.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G30
【国际标准分类号】:83_140_10
【页数】:6P.;A4
【正文语种】:
【英文标准名称】:Firehazardtesting-Part9-1:surfacespreadofflame-Generalguidance.
【原文标准名称】:火灾试验.第9-1部分:火焰的平面扩展.一般指南
【标准号】:NFC20-991-2000
【标准状态】:现行
【国别】:法国
【发布日期】:2000-03-01
【实施或试行日期】:2000-03-05
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:火焰表面传播;安全;火灾危险;火灾危险;点燃物;火焰;电工产品;电气工程;燃烧试验;试验;安全要求;点火;防火;评定;安全工程
【英文主题词】:Danger;Dispersion;Electricalengineering;Electrotechnicalproducts;Evaluations;Firehazardtest;Firehazards;Fireproofness;Firerisks;Firetests;Flamepropagation;Flames;Guidebooks;Hazards;Ignitablesubstances;Ignition;Materials;Safety;Safetycriteria;Safetyengineering;Surfacespreadofflame;Surfaces;Testing
【摘要】:
【中国标准分类号】:C80
【国际标准分类号】:13_220_40;29_020
【页数】:12P.;A4
【正文语种】:其他
