【英文标准名称】:StandardPracticeforFilteredOpen-FlameCarbon-ArcExposuresofPlastics
【原文标准名称】:塑料用滤光明火碳弧型曝光装置的标准实施规程
【标准号】:ASTMD1499-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:使用说明;试验设备;塑料;曝光
【英文主题词】:carbon-arc;degradation;exposure;lightexposure;open-flamecarbon-arc;ultraviolet
【摘要】:Theabilityofaplasticmaterialtoresistdeteriorationofitselectrical,mechanical,andopticalpropertiescausedbyexposuretolight,heat,andwatercanbeverysignificantformanyapplications.Thispracticeisintendedtoinducepropertychangesassociatedwithend-useconditions,includingtheeffectsofsunlight,moisture,andheat.Theexposureusedinthispracticeisnotintendedtosimulatethedeteriorationcausedbylocalizedweatherphenomena,suchas,atmosphericpollution,biologicalattack,andsaltwaterexposure.(Warning8212;Variationinresultsmaybeexpectedwhenoperatingconditionsarevariedwithintheacceptedlimitsofthispractice.Therefore,noreferencetotheuseofthispracticeshallbemadeunlessaccompaniedbyareportpreparedinaccordancewithSection9thatdescribesthespecificoperatingconditionsused.RefertoPracticeG151fordetailedinformationonthecaveatsapplicabletouseofresultsobtainedinaccordancewiththispractice.)Note28212;Additionalinformationonsourcesofvariabilityandonstrategiesforaddressingvariabilityinthedesign,execution,anddataanalysisoflaboratory-acceleratedexposuretestsisfoundinGuideG141.Reproducibilityoftestresultsbetweenlaboratorieshasbeenshowntobegoodwhenthestabilityofmaterialsisevaluatedintermsofperformancerankingcomparedtoothermaterialsortoacontrol.4,5Therefore,exposureofasimilarmaterialofknownperformance(acontrol)atthesametimeasthetestmaterialsisstronglyrecommended.Itisrecommendedthatatleastthreereplicatesofeachmaterialbeexposedtoallowforstatisticalevaluationofresults.TestresultswilldependuponthecarethatistakentooperatetheequipmentinaccordancewithPracticeG152.Significantfactorsincluderegulationoflinevoltage,freedomfromsaltorotherdepositsfromwater,temperatureandhumiditycontrol,andconditionsoftheelectrodes.1.1Thispracticecoversspecificproceduresandtestconditionsthatareapplicableforexposureofplasticsinfilteredopen-flamecarbon-arcdevicesconductedinaccordancewithPracticesG151andG152.Thispracticealsocoversthepreparationoftestspecimens,thetestconditionsuitedforplastics,andtheevaluationoftestresults.1.2Thispracticedoesnotcoverenclosedcarbon-arcexposuresofplastics,whichhadbeenallowedinPracticeD1499.Enclosedcarbon-arcexposuresofplasticsaredescribedinPracticeD6360,andinG153,whichgivesrequirementsforexposingnonmetallicmaterialsinenclosedcarbon-arcdevices.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note18212;ThispracticeistechnicallyequivalenttoISO4892-4.
【中国标准分类号】:G32
【国际标准分类号】:83_080_01
【页数】:5P.;A4
【正文语种】:
基本信息
| 标准名称： | 水电水利工程施工机械安全操作规程 混凝土泵车 |
| 发布部门： | 国家能源局 |
| 发布日期： | 2012-08-23 |
| 实施日期： | 2012-12-01 |
| 首发日期： | |
| 作废日期： | |
| 出版社： | 中国电力出版社 |
| 出版日期： | 2012-12-01 |
适用范围
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所属分类： 医药 卫生 劳动保护 医药 卫生 劳动保护综合 医学 医药卫生技术 医学科学和保健装置综合