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【英文标准名称】:StandardPracticeforOperatingOpenFlameCarbonArcLightApparatusforExposureofNonmetallicMaterials
【原文标准名称】:非金属材料曝光用明焰碳弧光仪器操作的标准实施规范
【标准号】:ASTMG152-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:G03.03
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:人工气候环境试验;电弧;非金属的;阳光
【英文主题词】:accelerated;acceleratedweathering;carbonarc;durability;exposure;laboratoryweathering;light;lightfastness;nonmetallicmaterials;openflamecarbonarc;sunshinecarbonarc;temperature;ultraviolet;weathering
【摘要】:Theuseofthisapparatusisintendedtoinducepropertychangesassociatedwiththeenduseconditions,includingtheeffectsofsunlight,moisture,andheat.Theseexposuresmayincludeameanstointroducemoisturetothetestspecimen.Exposuresarenotintendedtosimulatethedeteriorationcausedbylocalizedweatherphenomena,suchasatmosphericpollution,biologicalattack,andsaltwaterexposure.Alternatively,theexposuremaysimulatetheeffectsofsunlightthroughwindowglass.Typically,theseexposureswouldincludemoistureintheformofhumidity.Cautions8212;RefertoPracticeG151forfullcautionaryguidanceapplicabletoalllaboratoryweatheringdevices.Variationinresultsmaybeexpectedwhenoperatingconditionsarevariedwithintheacceptedlimitsofthispractice.Noreference,therefore,shallbemadetoresultsfromtheuseofthispracticeunlessaccompaniedbyareportdetailingthespecificoperatingconditionsinconformancewithSection10.Itisrecommendedthatasimilarmaterialofknownperformance,acontrol,beexposedsimultaneouslywiththetestspecimentoprovideastandardforcomparativepurposes.Itisrecommendedthatatleastthreereplicatesofeachmaterialevaluatedbeexposedineachtesttoallowforstatisticalevaluationofresults.1.1Thispracticecoversthebasicprinciplesandoperatingproceduresforusingopenflamecarbon-arclightandwaterapparatusintendedtoreproducetheweatheringeffectsthatoccurwhenmaterialsareexposedtosunlight(eitherdirectorthroughwindowglass)andmoistureasrainordewinactualuse.Thispracticeislimitedtotheproceduresforobtaining,measuring,andcontrollingconditionsofexposure.Anumberofexposureproceduresarelistedinanappendix;however,thispracticedoesnotspecifytheexposureconditionsbestsuitedforthematerialtobetested.Note1PracticeG151describesperformancecriteriaforallexposuredevicesthatuselaboratorylightsources.ThispracticereplacesPracticeG23,whichdescribesveryspecificdesignsfordevicesusedforcarbon-arcexposures.TheapparatusdescribedinPracticeG23iscoveredbythispractice.1.2Testspecimensareexposedtofilteredopenflamecarbonarclightundercontrolledenvironmentalconditions.Differentfiltersaredescribed.1.3Specimenpreparationandevaluationoftheresultsarecoveredinmethodsorspecificationsforspecificmaterials.GeneralguidanceisgiveninPracticeG151andISO4892-1.MorespecificinformationaboutmethodsfordeterminingthechangeinpropertiesafterexposureandreportingtheseresultsisdescribedinPracticeD5870.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.5.1Shouldanyozonebegeneratedfromtheoperationofthelightsource,itshallbecarriedawayfromthetestspecimensandoperatingpersonnelbyanexhaustsystem.1.6ThispracticeistechnicallysimilartoISO4892-4.
【中国标准分类号】:H20
【国际标准分类号】:19_040
【页数】:9P.;A4
【正文语种】:


【英文标准名称】:Geographicinformation-QualityevaluationproceduresTECHNICALCORRIGENDUM1
【原文标准名称】:地理信息.质量评定规程.技术勘误表1
【标准号】:ANSI/INCITS/ISO19114Corrigendum1-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:准确度;通信;通信系统;通信技术;数据;数据描述;数据交换;数据处理;数据处理系统;数据记录;数据表示;数据传送;评定;大地测量学;地理信息;地理的;地理学;地质学;测绘学;大地构造学;信息;信息交流;信息处理;信息技术;精密度;质量;质量评定;质量保证;规范(验收)
【英文主题词】:Accuracy;Communication;Communicationsystems;Communicationtechnology;Data;Datadescription;Dataexchange;Dataprocessing;Dataprocessingsystem;Datarecords;Datarepresentation;Datatransfer;Evaluations;Geodesy;Geographicinformation;Geographical;Geography;Geology;Geomatics;Geotechnics;Information;Informationexchange;Informationprocessing;Informationtechnology;Precision;Quality;Qualityassessment;Qualityassurance;Specification(approval)
【摘要】:
【中国标准分类号】:A75;L70
【国际标准分类号】:35_240_70
【页数】:
【正文语种】:英语