ASTM E1501-1999(2004) 可见度增强的行人用反光标志的夜间光学性能标准规范

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【英文标准名称】:StandardSpecificationforNighttimePhotometricPerformanceofRetroreflectivePedestrianMarkingsforVisibilityEnhancement
【原文标准名称】:可见度增强的行人用反光标志的夜间光学性能标准规范
【标准号】:ASTME1501-1999(2004)
【标准状态】:现行
【国别】:
【发布日期】:1999
【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】:E12.08
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:运输安全;行人;作标记;反光
【英文主题词】:conspicuity;highvisibilitymaterials;nighttimeretroreflectiveperformance;pedestrians;retroreflection/retroreflectors;retroreflectivepedestrianmarkings;visibility
【摘要】:1.1Thisspecificationcoverstheperformanceofretroreflectivemarkingstobeusedonobjectswornbypedestriansforthepurposeofenhancedconspicuity.Itaddressesconspicuityfromviewpointsaroundtheentireobject,anditallowsforfreedomofdesignofthemarkingssolongastheminimumrequirementsareachieved.Objectsincludebutarenotlimitedtojackets,shirts,vests,trousers,socks,backpacks,hats,andfootwear.Anadjustmentforthebrightness/luminanceratioasafunctionofcolorisalsomade.1.2Thisspecificationappliesonlytonighttimeviewingconditionsinwhichtheobserverispositionednearasourceofillumination.Themostcommonexampleisthatofamotorvehicleoperatorseeingbymeansofthelightfromtheheadlampsofthevehicle.1.3Thisspecificationdescribestheminimumretroreflectiveperformancerequiredforareasonablelevelofnighttimeconspicuity.Itdoesnotaddresspotentiallydiminishedperformanceofretroreflectivemarkingsthatmaybeexperiencedwithgeneralstorage,use,wear,andcare.1.4SI(metric)unitsshallbeusedinrefereedecisionsunderthisspecification.1.5Thefollowingsafetyhazardscaveatpertainstospecifyingmaterialsbythisstandardspecification.Althoughthemarkingsdescribedinthisspecificationareintendedtosignificantlyenhancesafetythroughincreasedconspicuityundermostconditionsofilluminationandviewingofthetypedescribedin1.2above,theydonotguaranteesignificantlyenhancedconspicuityunderallsuchconditions.Individualsexposedtoadverseweatherconditionsorassociatedwithhighlevelsofvehicularorhazardsexposuremayrequireothertypesoramountsofretroreflectivemarkings.Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:R10;P66
【国际标准分类号】:17_180_20
【页数】:8P.;A4
【正文语种】: