【英文标准名称】:StandardPracticeforDescribingRetroreflection
【原文标准名称】:向后反射性描述的标准实施规程
【标准号】:ASTME808-2001(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:2001
【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】:E12.10
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:Applicationsystem;CIE(goniometer)system;entranceangle;Intrinsicsystem;observationangle;orientationangle;presentationangle;retroreflection;rotationangle;CIE(goniometer)system;Color--retroreflection/retroreflectors;Dataanalysis--envir
【摘要】:Thispracticeappliestoanymeasurementofreflectanceinwhichtheangleatthesamplebetweenthedirectionoftheincidentradiationandthedirectionofviewingislessthanapproximately10x00B0;,andthereflectedradiationisconcentratedinadirectionoppositetothedirectionofincidence.TheCIE(goniometer)systemdescribedin6.1.1wasdevelopedbytheSubcommitteeonRetroreflectionofCommittee2.3onMaterialsoftheInternationalCommissiononIllumination(CommissionInternationaldel''Eclairage,CIE).Itisintendedtoprovideacommonbasisforthemeasurementofretroreflection,whichshouldbeusedworldwide.Thispracticeprovidesalternativegeometriccoordinatesystemsusefulforvisualizingrelationshipsbetweenvariousanglesinactualuse.1.1Thispracticeprovidesterminology,alternativegeometricalcoordinatesystems,andproceduresfordesignatinganglesindescriptionsofretroreflectors,specificationsforretroreflectorperformance,andmeasurementsofretroreflection.1.2TerminologydefinedhereinincludestermsgermanetootherASTMdocumentsonretroreflection.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:N30
【国际标准分类号】:17_180_20
【页数】:10P.;A4
【正文语种】:英语


【英文标准名称】:CoversforWellShaftsandSpringWaterChambers;Frames
【原文标准名称】:井筒和喷水池的盖.框架
【标准号】:DIN1239Bb.2-1963
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:
【页数】:
【正文语种】: