BS EN 60118-13-2005 电声学.助听器.电磁兼容性(EMC)
时间:2024-05-22 01:05:14 来源: 标准资料网 作者：标准资料网 阅读：9769
【英文标准名称】:Electroacoustics-Hearingaids-Electromagneticcompatibility(EMC)
【原文标准名称】:电声学.助听器.电磁兼容性(EMC)
【标准号】:BSEN60118-13-2005
【标准状态】:作废
【国别】:英国
【发布日期】:2005-10-25
【实施或试行日期】:2005-10-25
【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】:声学;定义;电气工程;电声学;电磁兼容性;电磁兼容性EMC;场强(电);助听器;干扰抑制;极限(数学);测量技术;性能;规范(验收);试验
【英文主题词】:Acoustics;Definition;Electricalengineering;Electroacoustics;Electromagneticcompatibility;EMC;Fieldstrength(electric);Hearingaids;Interferencerejections;Limits(mathematics);Measuringtechniques;Performance;Specification(approval);Testing
【摘要】:ThispartofIEC60118coversallrelevantEMCphenomenaforhearingaids.EMCphenomena,suchasRFemissionandelectrostaticdischarge,arenotcurrentlyknowntobeasignificantprobleminconnectionwithhearingaidsandarethereforenotdealtwith.Basedonnewknowledge,theycouldbeconsideredinconnectionwithfuturerevisionsorextensionsofthisstandard.HearingaidimmunitytohighfrequencyelectromagneticfieldsoriginatingfromwirelesstelephonesystemsiscurrentlyidentifiedastheonlyrelevantEMCphenomenaregardinghearingaids.IEC61000-4-3isthebasisforrelevantEMCteststobeconductedonhearingaids.Measurementmethodsandacceptancelevelsaredescribedinthisstandard.ForthepurposeofthispartofIEC60118,twoimmunityclassesofhearingaidsaredefined(see3.1)relatedtotheiruse."Bystandercompatible"isdefinedasasituation,whichensuresthatahearingaidisusableinenvironmentswheredigitalwirelessdevicesareinoperationintheproximityofthehearingaidwearer."Usercompatible"hearingaidswillensurethatahearingaidisusablewhenthehearingaidwearerisusingadigitalwirelessdeviceatthewearer′sownaidedear.Measurementmethodsforhearingaidswithnon-acousticoutputsandforhearingaidsconnectedtootherequipmentbycablesarenotgiveninthisstandard.
【中国标准分类号】:L31
【国际标准分类号】:33_100_20
【页数】:15P.;A4
【正文语种】:英语
【英文标准名称】:StandardSpecificationforConcreteBuildingBrick
【原文标准名称】:混凝土砖标准规格
【标准号】:ASTMC55-2011
【标准状态】:现行
【国别】:
【发布日期】:2011
【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】:C15.03
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:吸收;耐压强度;混凝土砖;混凝土建筑砖块;混凝土圬工单位;线性干收缩;硅酸盐水泥
【英文主题词】:absorption;compressivestrength;concretebrick;concretebuildingbrick;concretemasonryunits;lineardryingshrinkage;portlandcement
【摘要】:1.1Thisspecificationcoverssolid,dry-cast,concretebuildingbrickintendedforinteriorandexterioruseinconstructingstructuralmasonry,andaremadefromportlandcement,water,andsuitablemineralaggregateswithorwithouttheinclusionofothermaterials.Note18212;SpecificationC1634addressesconcretefacingbrickusedinfacingapplicationsandotherexposures(previouslyreferredtoinearliereditionsofthisstandardasGradeNforuseasarchitecturalveneerandfacingunitsinexteriorwallsandforusewherehigh-strengthandresistancetomoisturepenetrationandseverefrostactionaredesired).ThisspecificationdiffersfromC1634inthatitaddressespropertiesforconcretebuildingbrickusedinnon-facing,utilitarianapplications(previouslyreferredtoinearliereditionsofthisspecificationasGradeSforgeneralusewheremoderatestrengthandresistancetofrostactionandmoisturepenetrationarerequired).1.2Thetextofthisspecificationreferencesnotesandfootnoteswhichprovideexplanatorymaterial.Thesenotesandfootnotes(excludingthoseintablesandfigures)shallnotbeconsideredasrequirementsofthestandard.1.3Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Note28212;Concretebuildingbrickcoveredbythisspecificationaremadefromlightweightornormalweightaggregates,orboth.Note38212;Whenparticularfeaturesaredesired,suchasdensityclassification,highcompressivestrength,surfacetexturesforappearanceorbond,finish,color,fireresistance,insulation,acousticalproperties,orotherspecialfeatures,suchpropertiesshouldbespecifiedseparatelybythepurchaser.Suppliersshouldbeconsultedastotheavailabilityofconcretebuildingbrickhavingthedesiredfeatures.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.
【中国标准分类号】:
【国际标准分类号】:91_100_30
【页数】:3P.;A4
【正文语种】:
【英文标准名称】:Stainlesssteeltubes-Dimensions,tolerancesandconventionalmassesperunitlength(ISO1127:1992);GermanversionENISO1127:1996
【原文标准名称】:不锈钢管.尺寸,公差和单位长度的质量
【标准号】:DINENISO1127-1996
【标准状态】:作废
【国别】:德国
【发布日期】:1996-05
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:管道;管连接件;尺寸;钢;铁素体钢;厚度;奥氏体钢;质量;线密度;无缝的;极限偏差;优质钢;钢管;管;公差(测量);尺寸公差;不锈钢;壁厚;马氏体钢;重量
【英文主题词】:
【摘要】:
【中国标准分类号】:H48
【国际标准分类号】:23_040_10
【页数】:10P;A4
【正文语种】:德语