DIN EN 148 T.3-1992 呼吸防护器.面罩连接用螺纹.螺纹连接M45×3
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【英文标准名称】:Respiratoryprotectivedevices;threadsforfacepieces;threadconnectionM453;germanversionEN148-3:1992
【原文标准名称】:呼吸防护器.面罩连接用螺纹.螺纹连接M45×3
【标准号】:DINEN148T.3-1992
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:
【页数】:
【正文语种】:
【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】:StandardTestMethodforDeterminationofButaneActivityofActivatedCarbon
【原文标准名称】:活性碳丁烷活性测定的标准试验方法
【标准号】:ASTMD5742-1995(2005)
【标准状态】:现行
【国别】:
【发布日期】:1995
【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】:D28.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:试验方法;丁烷;化学试剂;活性碳
【英文主题词】:activatedcarbon
【摘要】:Thebutaneactivityasdeterminedbythistestmethodisameasureoftheabilityofanactivatedcarbontoadsorbbutanefromdryairunderspecifiedconditions.Itisusefulforthequalitycontrolandevaluationofgranularactivatedcarbons.Thebutaneactivityisanindicationofthemicroporevolumeoftheactivatedcarbonsample.Thisactivitynumberdoesnotnecessarilyprovideanabsoluteorrelativemeasureoftheeffectivenessofthetestedcarbonforotheradsorbatesoratotherconditionsofoperation.Thebutaneactivitytestcanbeusedasanon-ozonedepletingsubstituteforthecarbontetrachlorideactivitytestinTestMethodD3467.Fig.1showsanexperimentalcorrelationofactivityvaluesobtainedusingthetwoadsorbates.Note18212;Thistesthasnotbeendesignedforusewithpowderedactivatedcarbon,butithasbeenusedsuccessfullywhentheflowrateortimeareadjustedorthesamplevolumeisdecreasedtokeepthepressuredropatanacceptablevalue.FIG.1ButaneVersusCarbonTetrachlorideCorrelation1.1Thistestmethodcoversdeterminationoftheactivationlevelofactivatedcarbon.Butaneactivity(BA)isdefinedhereinastheratio(inpercent)ofthemassofbutaneadsorbedbyanactivatedcarbonsampletothemassofthesample,whenthecarbonissaturatedwithbutaneundertheconditionslistedinthistestmethod.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Foraspecificwarningstatement,see7.1.
【中国标准分类号】:G63
【国际标准分类号】:71_040_30
【页数】:4P.;A4
【正文语种】:
