DIN 1389-2-1979 厕所用连接件.结构与检验原则
时间:2024-05-04 17:55:15 来源: 标准资料网 作者：标准资料网 阅读：9965
【英文标准名称】:ConnectorsforWaterClosets;PrinciplesofConstructionandTesting
【原文标准名称】:厕所用连接件.结构与检验原则
【标准号】:DIN1389-2-1979
【标准状态】:作废
【国别】:德国
【发布日期】:1979-10
【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】:冲洗便盆;冲洗式马桶;材料;连接器;作标记;抽水马桶;卫生器具;排水管;定义;密封件;规范(审批)
【英文主题词】:sanitaryappliances;connectors;seals;marking;materials;waterclosets;specification(approval);definitions;washdownwcpans;washoutwcpans;drainpipes
【摘要】:
【中国标准分类号】:Y71
【国际标准分类号】:91_140_70
【页数】:2P;A4
【正文语种】:德语
【英文标准名称】:Acoustics-Determinationofsoundpowerradiatedintoaductbyfansandotherair-movingdevices-In-ductmethod(ISO5136:2003);EnglishversionofDINENISO5136:2009-11
【原文标准名称】:声学,风机或其他空气移动装置辐射入管道中的声功率的测定.管道法(ISO5136:2003),德文版本ENISO5136:2009
【标准号】:DINENISO5136-2009
【标准状态】:现行
【国别】:德国
【发布日期】:2009-11
【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】:Acousticmeasurement;Acoustictesting;Acoustics;Definitions;Determination;Ductmethods;Ductedfans;Fans;Loudnesslevels;Measurement;Measuringresults;Measuringtechniques;Noise(environmental);Noisemeasurements;Powerlevels;Sound;Soundintensity;Soundlevel;Soundlevels;Soundpower;Testing;Ventilators;Volume(sound)
【摘要】:1.1GeneralThisInternationalStandardspecifiesamethodfortestingductedfansandotherair-movingdevicestodeterminethesoundpowerradiatedintoananechoicallyterminatedductontheinletand/oroutletsideoftheequipment.NOTE1Forthesakeofbrevity,wherevertheterm"fan"occursinthetext,itmeans"fanorotherair-movingdevice".Themethodisapplicabletofanswhichemitsteady,broad-band,narrow-bandanddiscrete-frequencysoundandtoairtemperaturesbetween-50℃and+70℃.Thetestductdiameterrangeisfrom0,15mto2m.Testmethodsforsmall(d<0,15m)andlarge(d>2m)testductsaredescribedintheinformativeAnnexesHandI,respectively.Themaximummeanflowvelocityatthemicrophoneheadforwhichthemethodissuitabledependsonthetypeofmicrophoneshieldused,andisasfollows:--foamball15m/s;--nosecone20m/s;--samplingtube40m/s.Abovethesevaluesthesuppressionofturbulentpressurefluctuationsbythemicrophoneshield(see3.9)maybeinsufficient.ItisexpectedthatsoundpowertestswillbeconductedinconjunctionwithairflowperformancetestsinaccordancewithISO5801.Theductingarrangementwillthereforenormallyincorporatea"star"typeflowstraightenerontheoutletsideofthefanwhichwillminimizeswirl(see7.3).Whereitispermissibletodeletethestraighteneras,forexample,withlargefanstoinstallationcategoryCaccordingtoISO5801:1997,themethodislimitedtoaswirlangleof15~.(AnexampleofamethodfordeterminingtheangleofswirlisgiveninAnnexJ.)NOTE2TheinstallationcategoriesdefinedinISO5801implythatthefaniseitherductedontheoutletsideonly(categoryB),ontheinletsideonly(categoryC)oronbothsides(categoryD).1.2TypesofsoundsourceThemethoddescribedinthisInternationalStandardisapplicabletoasoundsourceinwhichafanisconnectedtoductsonatleastoneside.Itisalsoapplicabletootherfan/attenuatorcombinationsorequipmentincorporatingfanswhichcanbeconsideredas"blackboxes".ExamplesoffansandotherequipmentcoveredbythisInternationalStandardare--ductedcentrifugalfans,--ductedaxialflowfans,ductedmixed-flowfans,ductedair-handlingunits,ducteddustcollectionunits,ductedair-conditioningunits,andductedfurnaces.ThisInternationalStandardisalsoapplicabletootheraerodynamicsourcessuchasboxes,dampersandthrottledevicesprovidedthataquietairflowdeliveredbyanauxiliaryfanisavailableandthesignal-to-noiseratioofsoundpressurestoturbulentpressurefluctuationsinthetestductisatleast6dB(see7.2.1).Analternativemethodtodeterminethesoundpowerleveloftheflow-generatednoiseofsuchaerodynamicsoundsources,whichdoesnotrequirethemeasurementofsoundpressureinaflowenvironment,isdescribedinISO7235.Themethodwasoriginallydevisedforthedeterminationoftheflownoiselevelofductedsilencers.Thesoundpowerisdeterminedinareverberationroomconnectedtothetestductviaatransitionelement.Inthecaseofductedfanswithcloselycoupledattenuators,thesignal-to-noiseratioofsoundpressurestoturbulentpressuresmaybeinsufficientwhenusingthein-ductmethod.ThereforethemethoddescribedinISO7235isrecommendedforsuchfan/attenuatorcombinations.ThisInternationalStandardisnetapplicabletonon-ductedfansorequipment.
【中国标准分类号】:Z32
【国际标准分类号】:17_140_20;23_120
【页数】:79P.;A4
【正文语种】:英语
【英文标准名称】:Metallicmaterials-Calibrationofextensometersusedinuniaxialtesting-Laserextensometersystemsandtheircalibration
【原文标准名称】:金属材料.单轴向试验用伸长计的校准.激光伸长计系统及其校准
【标准号】:DINENISO9513Bb.2-2005
【标准状态】:现行
【国别】:德国
【发布日期】:2005-07
【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】:材料;引伸计;磨损量;测量设备;材料试验机;定义;单轴向;校正装置;激光器;线性测量仪器;膨胀试验;金属材料;应变仪;试验设备;额定值;机械试验;抗拉试验;验证;测量仪器;金属;试验;校正;精密度;扫描器;长度变化;材料试验;
【英文主题词】:
【摘要】:
【中国标准分类号】:N71
【国际标准分类号】:17_040_30
【页数】:9P;A4
【正文语种】:德语