【英文标准名称】:Opticalfibreamplifiers-Basicspecification-Testmethodsforgainparameters-Electricalspectrumanalyzer
【原文标准名称】:光纤放大器.基本规范.参数获取测试方法.电气频谱分析仪
【标准号】:BSEN61290-1-2-1998
【标准状态】:作废
【国别】:英国
【发布日期】:1998-10-15
【实施或试行日期】:1998-10-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:激光器;增益控制;信号处理;电性质和电现象;放大器;波长;纤维光缆;频率分析仪;频谱分析仪;光学放大器;公式;光学仪器;电子设备及元件;信号强度;试验设备;衰减;电学测量仪表;光学纤维;电气设备;纤维光学;纤维光学连接器;数学计算
【英文主题词】:Amplifiers;Basicspecification;Electricalengineering;Electricalpropertiesandphenomena;Electrically-operateddevices;Fibreoptics;Opticaldevices;Opticalfibres;Opticalwaveguides;Optics;Parameters;Rareearthmetals;Specification;Spectra;Spectralanalysis;Spectrumanalyzers;Testing
【摘要】:ThispartofIEC61290appliestoopticalfibreamplifiers(OFAs)usingactivefibres,containingrare-earthdopants,presentlycommerciallyavailable.Theobjectofthisstandardistoestablishuniformrequirementsforaccurateandreliablemeasurements,bymeansoftheelectricalspectrumanalyzertestmethod,ofthefollowingOFAparameters,asdefinedinclause3ofIEC61291-1:a)small-signalgain;b)reversesmall-signalgain;c)maximumsmall-signalgain;d)maximumsmall-signalgainwavelength;e)maximumsmall-signalgainvariationwithtemperature;f)small-signalgainwavelengthband;g)small-signalgainwavelengthvariation;h)small-signalgainstability;i)polarization-dependentgainvariation.NOTE-Allnumericalvaluesfollowedby()areintendedtobecurrentlyunderconsideration.
【中国标准分类号】:M33
【国际标准分类号】:
【页数】:18P.;A4
【正文语种】:英语


【英文标准名称】:StandardGuideforLabelingofUV-ProtectiveTextiles
【原文标准名称】:防紫外线纺织品标识的标准指南
【标准号】:ASTMD6603-2010
【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】:美国材料与试验协会(US-ASTM)
【起草单位】:D13.65
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:aapparel;garments;labeling;terminology;UV-blocking;UVprotectionfactors;UVprotectivetextiles;Labels/labeling(textiles);Protectiveclothing;UVA/UVBradiationprotection;UV-protectivetextiles
【摘要】:ThisguidetolabelingprovidesauniformsystemoflabelingonUV-protectivetextilesthatinformsconsumersabouttheamountofUV-protectionprovided.UV-protectivetextileslabeledaccordingtothisstandardwillpermitconsumerstocomparetheamountofprotectionprovidedbyvarioustextilesandpurchasetheproductthatbestmeetstheirsunprotectionneeds.UV-labelingisinadditiontootherrequiredlabelingofgarmentsincludingPermanentCareLabelsandfibercontent(composition)labels.ManufacturersareencouragedtoprovideinformationtoconsumersthataidsinselectingproductsthatprovidetheamountofUV-protectiondesired.UV-protectivetextileslabeledaccordingtothisstandardguidewillbelabeledwithaUPFvalue.AATCCTestMethod183mustbeusedtodeterminethemeanUPFvaluesofunpreparedspecimens,ofspecimenspreparedusingPracticeD6544(prepared-for-testingspecimens),andofspecimenstakenfromgarmentslabeled,x201C;Washoncebeforewearing,x201D;thesespecimensbeingtakenafterthegarmentislaunderedonceaccordingtolabeldirections.Thelatterspecimensarereferredtoaslaundered-oncespecimensinthisdocument.AlabelUPFwillbecalculatedforthevarioustypesofspecimensfollowingdirectionsprovidedinthisdocument.Usually,thevaluetobeplacedontheproductlabelwillbethelabelUPFcalculatedfortheprepared-for-testingspecimensorthelabelUPFcalculatedfortheunpreparedspecimens,whicheveristhelowervalue.Inthecaseofproductstobelabeled,x201C;Washoncebeforewearing,x201D;orsimilarwording,theUPFvaluetobeplacedontheproductlabelwillbeeithertheUPFcalculatedfortheprepared-for-testingspecimensorthelaundered-oncespecimens,whichevervalueisthelowerone.4.5.1Discussion151;TheUPFvaluetobeplacedonagarmentlabelneedstobethelowestprotectionvalueexpectedduringconsumeruseoveratwo-yearperiod.Usually,thisUPFvaluewillbethatobtainedfortheprepared-for-testingspecimensbecausetheyhavebeenlaundered40timesandexposedtoUV-radiationtosimulateconditionsexpectedtolowertheUPFduringconsumeruse.However,forcertainfabrics,knitsinparticular,thefabricmanufacturermusttenter(stretch)thefabrictostandardwidthforthegarmentmanufacturer.ThisprocessdecreasestheUPFofthefabricdramaticallybecausetheopticalporosity,whichhasasignificantinfluenceonUPF,isincreasedanddoesnotrepresentthelowestUPFprovidedtotheconsumerbecauseafterthefirstlaunderingshrinkagemayrestorethelostprotectionbyreducingtheopticalporosityofthefabric.Inthesecases,thevaluetocomparetotheprepared-for-testingvalueislogicallythatoflaunderedoncespecimens.UV-protectivelabelingisintendedtobeusedontextileproductswhosedesignorstylingprovidespurposefulprotectiontocoveredskin.UVprotectivelabelingshouldbeusedonany,andall,fabricsorgarments,orboth,ifthoseproductsmakeaUVprotectiveclaimasdeterminedbythisGuide.1.1ThisstandarddescribeslabelingrequirementsfortextileproductsintendedfortheprotectionofhumansfromUVAandUVBradiation.1.2Thisstandardisnotintendedtobeusedforthelabelingofmedical-devicesunprotectivefabricsandclothingwhoselabelingisspecifiedintheU.S.FoodandDrugAdministration''sDraftGuidanceforthePreparationofaPremarketNotificationdocument.1.3ThelabelrequirementsareinadditiontothoserequiredbytheCareLabelingRuleandfibercontent(composition)labelingacts(Wo......
【中国标准分类号】:W55
【国际标准分类号】:13_340_10
【页数】:5P.;A4
【正文语种】:英语