ANSI/ASTM D4674-1989 暴露在室内荧光灯和透过窗户的日光中的塑料颜色稳定性的加速试验方法

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【英文标准名称】:AcceleratedTestingforColorStabilityofPlasticsExposedtoIndoorFluorescentLightingandWindow-FilteredDaylight,TestMethodfor(08.03)
【原文标准名称】:暴露在室内荧光灯和透过窗户的日光中的塑料颜色稳定性的加速试验方法
【标准号】:ANSI/ASTMD4674-1989
【标准状态】:现行
【国别】:美国
【发布日期】:1989
【实施或试行日期】:1997-12-16
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:塑料;快速试验;自然采光;荧光灯;彩色稳定性
【英文主题词】:plastics;short-timetests;colourstability;fluorescentlamps;naturallighting
【摘要】:Thispracticecoversthebasicprinciplesandoperatingproceduresforusingfluorescentlighttodeterminecolorstabilityofplasticswhenmaterialsareexposedintypicalofficeenvironmentswherefluorescentoverheadlightingandwindow-filtereddaylightareusedforilluminationandwheretemperatureandhumidityconditionsareinaccordancewithAmericanSocietyofHeating,Refrigerating,andAir-conditioningEngineers(ASHRAE)recommendationsforworkers'comfort.Note1-ThereisnoequivalentISOstandard.Thispracticedescribesfourmethodswherespecimensareexposedtofluorescentlightundercontrolledenvironmentalconditions.TwoofthemethodsuseanexposuredevicethatprovidesformixingoffluorescentlampsandtwoofthemethodsusedevicesthatcomplywithPracticeG154.Note2MethodIusescoolwhitefluorescentlampsandwindowglassfilteredfluorescentUVBlampsandisthesamemethoddescribedinpreviousversionsofthisstandard.SpecimenpreparationandevaluationoftheresultsarecoveredinASTMmethodsorspecificationsforspecificmaterials.GeneralguidanceisgiveninPracticeG151.MorespecificinformationaboutmethodsfordeterminingthechangeinpropertiesafterexposureandreportingtheseresultsisdescribedinPracticeD5870.ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.5Unlessotherwisespecified,alldimensionsarenominal.1.6Thispracticemayinvolvehazardousmaterials,operations,andequipment.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,isany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecificprecautionarystatementsaregiveninSection7.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:
【正文语种】:英语