【英文标准名称】:StandardPracticeforEnclosedCarbon-ArcExposuresofPlastics
【原文标准名称】:塑料的闭合碳弧曝光标准实施规范
【标准号】:ASTMD6360-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:D20.50
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:降解;电弧;曝光;塑料;紫外线
【英文主题词】:carbon-arc;degradation;enclosedcarbon-arc;exposure;lightexposure;ultraviolet
【摘要】:Theabilityofaplasticmaterialtoresistdeteriorationofitselectrical,mechanical,andopticalpropertiescausedbyexposuretolight,heat,andwatercanbeverysignificantformanyapplications.Thispracticeisintendedtoinducepropertychangesassociatedwithend-useconditions,includingtheeffectsofsunlight,moisture,andheat.Theexposureusedinthispracticeisnotintendedtosimulatethedeteriorationcausedbylocalizedweatherphenomenasuchasatmosphericpollution,biologicalattack,andsaltwaterexposure.(Warning8212;Variationinresultsmaybeexpectedwhenoperatingconditionsarevariedwithintheacceptedlimitsofthispractice;therefore,noreferencetotheuseofthispracticeshallbemadeunlessaccompaniedbyareportpreparedinaccordancewithSection9thatdescribesthespecificoperatingconditionsused.RefertoPracticeG151fordetailedinformationonthecaveatsapplicabletouseofresultsobtainedinaccordancewiththispractice.)Note28212;Additionalinformationonsourcesofvariabilityandonstrategiesforaddressingvariabilityinthedesign,execution,anddataanalysisoflaboratory-acceleratedexposuretestsisfoundinGuideG141.Reproducibilityoftestresultsbetweenlaboratorieshasbeenshowntobegoodwhenthestabilityofmaterialsisevaluatedintermsofperformancerankingcomparedtoothermaterialsortoacontrol;therefore,exposureofasimilarmaterialofknownperformance(acontrol)atthesametimeasthetestmaterialsisstronglyrecommended.3,4Itisrecommendedthatatleastthreereplicatesofeachmaterialbeexposedtoallowforstatisticalevaluationofresults.TestresultswilldependuponthecarethatistakentooperatetheequipmentinaccordancewithPracticeG153.Significantfactorsincluderegulationoflinevoltage,freedomfromsaltorotherdepositsfromwater,temperatureandhumiditycontrol,andconditionsoftheelectrodes.1.1Thispracticecoversspecificproceduresandtestconditionsthatareapplicableforexposureofplasticsinenclosedcarbon-arcdevicesconductedinaccordancewithPracticesG151andG153.Thispracticealsocoversthepreparationoftestspecimens,thetestconditionssuitedforplastics,andtheevaluationoftestresults.1.2Thispracticedoesnotcoverfilteredopen-flamecarbon-arcexposuresofplastics,whicharecoveredinPracticeD1499.PracticeD5031describesenclosedcarbon-arcexposuresofpaintsandrelatedcoatings.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note1ThereisnoknownISOequivalenttothispractice.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:4P.;A4
【正文语种】: