【英文标准名称】:Photography(chemicals)-Sodiumacetate,anhydrous
【原文标准名称】:摄影化学药品-无水乙酸钠
【标准号】:ANSIPH4.176-1988
【标准状态】:作废
【国别】:美国
【发布日期】:1988
【实施或试行日期】:
【发布单位】:美国国家标准学会(ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:规范(验收);规范(批准);杂质试验;药液;乙酸钠;光化学;照相药品;酐;摄影;纯度
【英文主题词】:specification(approval);chemicals;anhydride;sodiumacetate;photography;photochemistry;puritytest;photographicchemicals;purity
【摘要】:
【中国标准分类号】:G84
【国际标准分类号】:37_040_30
【页数】:3P;A4
【正文语种】:英语


【英文标准名称】:Safetyofmachinery-Electro-sensitiveprotectiveequipment-Particularrequirementsforactiveopto-electronicprotectivedevicesresponsivetodiffusereflection(AOPDDR)
【原文标准名称】:机械安全.电感防护设备.响应漫反射的有源光电防护设备的特殊要求(AOPDDR)
【标准号】:BSDDCLC/TS61496-3-2004
【标准状态】:现行
【国别】:英国
【发布日期】:2004-02-05
【实施或试行日期】:2004-02-05
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:规范(验收);作标记;漫反射;非接触型;电气安全;光电子器件;防护区;试验;安全元件;保护装置;电机;电动机;安全要求;安全;电气设备;定义;感官分析;安全措施;电气工程;防电击;接触安全装置;工业机械;控制系统;检波器(回路);电控制设备;光电子学;机器
【英文主题词】:
【摘要】:Replacement:ThispartofIEC61496specifiesadditionalrequirementsforthedesign,constructionandtestingofelectro-sensitiveprotectiveequipment(ESPE)forthesafeguardingofmachinery,employingactiveopto-electronicprotectivedevicesresponsivetodiffusereflection(AOPDDRs)forthesensingfunction.Specialattentionisdirectedtorequirementswhichensurethatanappropriatesafety-relatedperformanceisachieved.AnESPEmayincludeoptionalsafetyrelatedfunctions,therequirementsforwhicharegivenbothinannexAofthispartandinannexAofIEC61496-1.Thispartdoesnotspecifythedimensionsorconfigurationsofthedetectionzoneanditsdispositioninrelationtohazardouspartsforanyparticularapplication,norwhatconstitutesahazardousstateofanymachine.ItisrestrictedtothefunctioningoftheESPE.AOPDDRsaredevicesthathaveadetectionzonespecifiedintwodimensionswhereinradiationinthenearinfraredrangeisemittedbyatransmitterelement(s).Whentheemittedradiationimpingesonanobject(forexample,apersonorpartofaperson),aportionoftheemittedradiationisreflectedtoareceivingelement(s)bydiffusereflectionwherebythepresenceoftheobjectcanbedetected.NOTEUndercertaincircumstances,limitationsofthesensorinrelationtoitsuseneedtobeconsidered.Forexample:–Objectsthatgeneratemirror-like(specular)reflectionsmaynotbedetectedifthediffusereflectancevalueislessthanthatspecifiedforthe"black"testpiece.–Thedeterminationoftheminimalreflectionfactorsforthedetectionofobstaclesisbasedontheclothingofaperson.Objectshavingareflectivitylowerthanthatconsideredinthispartmaynotbedetected.ExcludedfromthispartareAOPDDRsemployingradiationofwavelengthoutsidetherange820nmto946nm,andthoseemployingradiationotherthanthatgeneratedbytheAOPDDRitself.Forsensingdevicesthatemployradiationofwavelengthsoutsidethisrange,thispartmaybeusedasaguide.AlsoexcludedareAOPDDRshavingastateddetectioncapabilityoutsidetherange50mmto100mm.Thispartmayberelevanttoapplicationsotherthanthosefortheprotectionofpersons,forexample,fortheprotectionofmachineryorproductsfrommechanicaldamage.Insuchapplications,additionalrequirementsmaybenecessary,forexample,whenthematerialsthathavetobedetectedbythesensingfunctionhavedifferentpropertiesfromthoseofpersonsandtheirclothing.Thispartdoesnotdealwithelectromagneticcompatibility(EMC)emissionrequirements.Opto-electronicdevicesthatperformonlyone-dimensionalspot-likedistancemeasurements,forexample,proximityswitches,arenotcoveredbythispart.
【中国标准分类号】:K30
【国际标准分类号】:13_110
【页数】:60P;A4
【正文语种】:英语