IEC 60107-1-1997 Methods of measurement on receivers for television broadcast transmissions - Part 1 General considerations - Measurements on displays at radio .pdf

上传人:吴艺期 文档编号:1240981 上传时间:2019-08-25 格式:PDF 页数:412 大小:2MB
下载 相关 举报
IEC 60107-1-1997 Methods of measurement on receivers for television broadcast transmissions - Part 1 General considerations - Measurements on displays at radio .pdf_第1页
第1页 / 共412页
IEC 60107-1-1997 Methods of measurement on receivers for television broadcast transmissions - Part 1 General considerations - Measurements on displays at radio .pdf_第2页
第2页 / 共412页
IEC 60107-1-1997 Methods of measurement on receivers for television broadcast transmissions - Part 1 General considerations - Measurements on displays at radio .pdf_第3页
第3页 / 共412页
IEC 60107-1-1997 Methods of measurement on receivers for television broadcast transmissions - Part 1 General considerations - Measurements on displays at radio .pdf_第4页
第4页 / 共412页
IEC 60107-1-1997 Methods of measurement on receivers for television broadcast transmissions - Part 1 General considerations - Measurements on displays at radio .pdf_第5页
第5页 / 共412页
点击查看更多>>
资源描述

1、NORME INTERNATIONALE CEI IEC INTERNATIONAL STANDARD 601071 Troisimedition Thirdedition 199704 Numroderfrence Referencenumber CEI/IEC601071:1997 Mthodesdemesuresapplicables auxrcepteursdetlvision Partie1: Considrationsgnrales Mesuresauxdomainesradiofrquences etvidofrquences Methodsofmeasurementonrece

2、ivers fortelevisionbroadcasttransmissions Part1: Generalconsiderations Measurementsatradioandvideo frequenciesValiditdelaprsentepublication LecontenutechniquedespublicationsdelaCEIestcons tammentrevuparlaCEIafinquilreflteltatactuelde latechnique. Desrenseignementsrelatifsladatedereconfirmationde lap

3、ublicationsontdisponiblesauprsduBureauCentralde laCEI. Lesrenseignementsrelatifscesrvisions,ltablis sementdesditionsrvisesetauxamendementspeuvent treobtenusauprsdesComitsnationauxdelaCEIet danslesdocumentscidessous: BulletindelaCEI AnnuairedelaCEI Publiannuellement CataloguedespublicationsdelaCEI Pu

4、bliannuellementetmisjourrgulirement Terminologie Encequiconcernelaterminologiegnrale,lelecteurse reporteralaCEI50:VocabulaireElectrotechniqueInter national(VEI),quiseprsentesousformedechapitres sparstraitantchacundunsujetdfini.Desdtails completssurleVEIpeuventtreobtenussurdemande. Voirgalementledict

5、ionnairemultilinguedelaCEI. Lestermesetdfinitionsfigurantdanslaprsentepubli cationonttsoittirsduVEI,soitspcifiquement approuvsauxfinsdecettepublication. Symbolesgraphiquesetlittraux Pourlessymbolesgraphiques,lessymboleslittrauxetles signesdusagegnralapprouvsparlaCEI,lelecteur consultera: laCEI27: Sy

6、mboleslittrauxutiliseren lectrotechnique; laCEI417: Symbolesgraphiquesutilisables surlematriel.Index,relevetcompilationdes feuillesindividuelles; laCEI617: Symbolesgraphiquespourschmas; etpourlesappareilslectromdicaux, laCEI878: Symbolesgraphiquespour quipementslectriquesenpratiquemdicale. Lessymbol

7、esetsignescontenusdanslaprsentepubli cationonttsoittirsdelaCEI27,delaCEI417,dela CEI617et/oudelaCEI878,soitspcifiquementapprouvs auxfinsdecettepublication. PublicationsdelaCEItabliesparle mmecomitdtudes Lattentiondulecteurestattiresurleslistesfigurantlafin decettepublication,quinumrentlespublication

8、sdela CEIprparesparlecomitdtudesquiatablila prsentepublication. Validityofthispublication ThetechnicalcontentofIECpublicationsiskeptunder constantreviewbytheIEC,thusensuringthatthecontent reflectscurrenttechnology. Informationrelatingtothedateofthereconfirmationofthe publicationisavailablefromtheIEC

9、CentralOffice. Informationontherevisionwork,theissueofrevised editionsandamendmentsmaybeobtainedfromIEC NationalCommitteesandfromthefollowingIEC sources: IECBulletin IECYearbook Publishedyearly CatalogueofIECpublications Publishedyearlywithregularupdates Terminology Forgeneralterminology,readersarer

10、eferredtoIEC50: InternationalElectrotechnicalVocabulary (IEV),whichis issuedintheformofseparatechapterseachdealing withaspecificfield.FulldetailsoftheIEVwillbe suppliedonrequest.SeealsotheIECMultilingual Dictionary. Thetermsanddefinitionscontainedinthepresentpubli cationhaveeitherbeentakenfromtheIEV

11、orhavebeen specificallyapprovedforthepurposeofthispublication. Graphicalandlettersymbols Forgraphicalsymbols,andlettersymbolsandsigns approvedbytheIECforgeneraluse,readersarereferredto publications: IEC27: Lettersymbolstobeusedinelectrical technology; IEC417: Graphicalsymbolsforuseon equipment.Index

12、,surveyandcompilationofthe singlesheets; IEC617: Graphicalsymbolsfordiagrams; andformedicalelectricalequipment, IEC878:Graphicalsymbolsforelectromedical equipmentinmedicalpractice. Thesymbolsandsignscontainedinthepresentpublication haveeitherbeentakenfromIEC27,IEC417,IEC617 and/orIEC878,orhavebeensp

13、ecificallyapprovedforthe purposeofthispublication. IECpublicationspreparedbythesame technicalcommittee Theattentionofreadersisdrawntotheendpagesofthis publicationwhichlisttheIECpublicationsissuedbythe technicalcommitteewhichhaspreparedthepresent publication.NORME INTERNATIONALE CEI IEC INTERNATIONAL

14、 STANDARD 601071 Troisimedition Thirdedition 199704 Mthodesdemesuresapplicables auxrcepteursdetlvision Partie1: Considrationsgnrales Mesuresauxdomainesradiofrquences etvidofrquences Methodsofmeasurementonreceivers fortelevisionbroadcasttransmissions Part1: Generalconsiderations Measurementsatradioan

15、dvideo frequencies XJ Pourprix,voircatalogueenvigueur Forprice,seecurrentcatalogue CODEPRIX PRICECODE IEC1997Droitsdereproductionrservs Copyrightallrightsreserved Aucunepartiedecettepublicationnepeuttrereproduiteniut ilise sousquelqueformequecesoitetparaucunprocd,lectronique oumcanique,ycomprislapho

16、tocopieetlesmicrofilms,sans laccordcritdelditeur. Nopartofthispublicationmaybereproducedorut ilizedin anyformorbyanymeans,electronicormechanical,including photocopyingandmicrofilm,withoutpermissioninwritingfrom thepublisher InternationalElectrotechnicalCommission Telefax:+41229190300 3,ruedeVarembGe

17、neva,Switzerland IECwebsitehttp:/www.iec.ch CommissionElectrotechniqueInternationale InternationalElectrotechnicalCommission email:inmailiec.ch2 601071 CEI:1997 SOMMAIRE Pages AVANTPROPOS 12 Articles 1 Gnralits 14 1.1 Domainedapplication . 14 1.2 Rfrencesnormatives 14 2 Explicationgnraledestermes .

18、18 2.1 Dfinitions . 18 2.2 Typesdercepteurs 18 2.3 Connecteurspourquipementspriphriques 20 3 Notesgnralessurlesmesures 20 3.1Conditions gnrales. 20 3.1.1 Conditionsdefonctionnement 20 3.1.2 Localdessai 20 3.1.3 Prsentationdesrsultats 20 3.1.4 Environnement. 20 3.1.5 Prcautionsobserverlorsdesmesures

19、. 22 3.1.6 Alimentationlectrique. 22 3.1.7 Priodedestabilisation 24 3.2 Signauxdessai . 24 3.2.1 Signauxdessaivido. 24 3.2.2 Signauxdessaiaudio. 40 3.2.3 Signauxdessaitltexte 40 3.3 Signaldetlvisionradiofrquence(RF). 88 3.3.1 Niveauxdeporteuse . 88 3.3.2 Tauxdemodulationderfrence . 88 3.3.3 Canauxde

20、ssai 90 3.4 Signauxdentreradiofrquences 94 3.4.1 Niveaudusignaldentreradiofrquence(RF) . 94 3.4.2 Dispositionsrespecterpourlinjectiondesignauxradiofrquences. 94 3.4.3 Injectiondesignauxradiofrquencesdanslecasdetlviseurs quipsduneantenneincorpore 96 3.5 Bancdemesuresetinstrumentationassocie 102 3.5.1

21、 Bancdemesures 102 3.5.2 Gnrateursdesignauxdessaienbandedebase . 102 3.5.3 Modulateurdessaidetlvision. 102601071 IEC:1997 3 CONTENTS Page FOREWORD. 13 Clause 1 General 15 1.1 Scope. 15 1.2 Normativereferences . 15 2 Generalexplanationofterms 19 2.1 Definitions 19 2.2 Typesofreceivers . 19 2.3 Periph

22、eralconnectors. 21 3 Generalnotesonmeasurement 21 3.1 Generalconditions. 21 3.1.1Operation conditions . 21 3.1.2Test room . 21 3.1.3 Presentationofresults 21 3.1.4Environmental conditions 21 3.1.5 Precautionsduringmeasurement 23 3.1.6Power supply 23 3.1.7Stabilization period . 25 3.2 Testsignals. 27

23、 3.2.1 Videotestsignals 27 3.2.2 Audiotestsignals 41 3.2.3 Teletexttestsignals 41 3.3 Radiofrequency(r.f.)televisionsignal . 89 3.3.1Carrier levels 89 3.3.2Reference modulation . 89 3.3.3 Testchannels 91 3.4 Radiofrequencyinputsignals . 95 3.4.1 Radiofrequencyinputsignallevel 95 3.4.2 Radiofrequency

24、inputarrangements 95 3.4.3 Radiofrequencyinputtobuiltinantennas 97 3.5 Measuringsystemandtestinstruments 103 3.5.1 Measuringsystem. 103 3.5.2 Basebandtestsignalgenerators . 103 3.5.3 Televisiontestmodulator 1034 601071 CEI:1997 Articles Pages 3.5.4 GnrateurdesignauxRF . 104 3.5.5 Analyseurdespectre

25、104 3.5.6 Mesureurdebruitvido 104 3.5.7 Oscilloscope 104 3.5.8 Vecteurscope. 104 3.5.9 Voltmtreetdistorsiomtreaudio . 104 3.5.10 Accessoirespassifs 106 3.5.11 Luminancemtreetcolorimtre 106 3.5.12 Autresinstrumentsdemesuresoptiques 106 3.6 Conditionsnormalisesdemesures. 110 3.6.1 Niveauxnormalissdess

26、ignauxdentre . 110 3.6.2 Niveauxnormalissdessignauxdesortie 110 3.6.3 Rglagesnormalissdurcepteurdetlvision . 114 3.6.4 Conditionsnormalisesdobservation. 116 3.6.5 Conditionsgnrales 118 4 Essaispralablesdanslesconditionsdefonctionnementgnralementutilises 120 4.1 Caractristiqueslectriquesetmcaniques .

27、 120 4.2 Consommation lectrique 122 5. CaractristiquesRFdanslecanalderception. 124 5.1 Caractristiques daccord 124 5.1.1 Frquencedefonctionnementetsastabilit. 124 5.1.2 Plagedaccordfinenfrquence . 126 5.1.3 Contrleautomatiquedefrquence(CAF) 126 5.1.4 Sensibilitdurglagedaccord. 130 5.1.5 Propritsmcan

28、iquesdesrglagesdaccord 130 5.1.6 Caractristiquesdessystmesdaccordprrglables . 132 5.1.7 Incrmentsdelafrquencedaccord 134 5.2 Sensibilit. 142 5.2.1 Conditionsgnralesdemesure 142 5.2.2 Sensibilitlimiteparlegain 142 5.2.3 Sensibilitlimiteparlebruit 144 5.2.4 Sensibilitdesynchronisation. 144 5.2.5 Sensi

29、bilitdidentificationcouleur. 146 5.2.6 Coefficientderflexionlentreantenne 146 5.2.7 Caractristiquesstatiquesducontrleautomatiquedegain(CAG) . 150 5.2.8 Caractristiquesdynamiquesducontrleautomatiquedegain(CAG). 150 5.2.9 Suppressiondelacouleur 152 5.2.10 Niveaudentremaximalutilisableenprsencedunseuls

30、ignalRF 154 5.2.11 Niveaudentremaximalutilisableenprsencedunmultiplex designauxRF 154 5.3 Slectivitetrponseauxsignauxperturbateurs . 160 5.3.1 Gnralits 160 5.3.2 Slectivitpourdeuxsignaux . 162 5.3.3 Rapportdeprotectionlafrquenceintermdiaire. 164 5.3.4 Rapportdeprotectionparrapportauxcanauxadjacents.

31、 168601071 IEC:1997 5 Clause Page 3.5.4 RFsignalgenerator 105 3.5.5 Spectrumanalyzer 105 3.5.6 Videonoisemeter. 105 3.5.7 Oscilloscope. 105 3.5.8 Vectorscope 105 3.5.9 Audiolevel/distortionmeter. 105 3.5.10 Passivedevices 107 3.5.11 Luminancemeterandcolorimeter . 107 3.5.12 Otheropticalmeasuringinst

32、ruments . 107 3.6 Standardmeasuringconditions. 111 3.6.1 Standardinputsignallevels 111 3.6.2 Standardoutputsignallevels 111 3.6.3 Standardreceiversettings. 115 3.6.4 Standardviewingconditions 117 3.6.5General conditions 119 4 Initialtestsundergeneraloperatingconditions 121 4.1 Electricalandmechanica

33、lperformance. 121 4.2 Powerconsumption 123 5 Characteristicsofradiofrequencychannel. 125 5.1 Tuningcharacteristics. 125 5.1.1 Operatingfrequencyanditsstability 125 5.1.2 Finetuningfrequencyrange 127 5.1.3 Automaticfrequencycontrol(AFC) 127 5.1.4Tuning sensitivity 131 5.1.5 Mechanicalpropertiesoftuni

34、ngsystem. 131 5.1.6 Performancecharacteristicsofpresettabletuningsystems 133 5.1.7Tuning steps . 135 5.2 Sensitivity. 143 5.2.1 Generalmeasuringconditions. 143 5.2.2Gainlimited sensitivity 143 5.2.3Noiselimited sensitivity . 145 5.2.4Synchronizing sensitivity . 145 5.2.5Colour sensitivity . 147 5.2.

35、6 Coefficientofreflectionattheantennainput 147 5.2.7 Automaticgaincontrol(AGC)staticcharacteristics . 151 5.2.8 Automaticgaincontrol(AGC)dynamiccharacteristics. 151 5.2.9Colour killing . 153 5.2.10 Maximumusablesingler.f.inputsignallevel. 155 5.2.11 Maximumusablemultipler.f.inputsignallevel 155 5.3

36、Selectivityandresponsetoundesiredsignals . 161 5.3.1General 161 5.3.2Twosignal selectivity 163 5.3.3 Intermediatefrequencyinterferenceratio 165 5.3.4 Adjacentchannelinterferenceratio . 1696 601071 CEI:1997 Articles Pages 5.3.5 Rapportdeprotectionlafrquenceconjugue . 170 5.3.6 Intermodulation 174 5.3

37、.7 Transmodulation 178 5.3.8 Rapportdeprotectionlafrquencedeloscillateurlocal. 182 5.3.9 Rponseauxsignauxparasites 182 5.3.10 Perturbationsinternes 184 6 Caractristiquesdesvoiesdeluminanceetdechrominance . 192 6.1 Caractristiquesdelavoiedeluminance . 192 6.1.1 Conditionsgnralesdemesure 192 6.1.2 Rpo

38、nseenamplitudelafrquencevido 192 6.1.3 Caractristiquesdetempsdepropagationdegroupelafrquence vido 194 6.1.4 Rponselinaire 196 6.1.5 Distorsionnonlinairedeladuredeligne 200 6.1.6 Intermodulationchrominanceluminance. 202 6.1.7 Niveaudenoiretstabilitasssocie. 204 6.1.8 Distorsionengendreparlesignaldelu

39、minance(systmeSECAM) . 206 6.2 Caractristiquesdelavoiedechrominance . 214 6.2.1 Conditionsgnralesdemesure 214 6.2.2 Contrleautomatiquedegaindechrominance . 214 6.2.3 Gaindiffrentieletphasediffrentielle 216 6.2.4 Rponseenamplitudesuivantlafrquencemodulante. 218 6.2.5 Rponselinairedelavoiedechrominanc

40、e. 220 6.2.6 Ingalitsurleretardchrominanceluminance 224 6.2.7 Distorsionnonlinairedeladuredunelignedessignauxde chrominance 228 6.2.8 Caractristiquesdereproductiondusignalcouleur. 230 6.2.9 Stabilitdelasynchronisationcouleur 232 6.2.10 Stabilitdephasedeloscillateurdesousporteuse 232 6.2.11 Distorsio

41、ndinteractionluminancechrominance . 236 6.2.12 Caractristiquesdetempsdepropagationdegroupelafrquence delasousporteuse 240 6.2.13Amplificateurlimiteurdesignaldechrominancepourlesrcepteurs SECAM 244 6.3 Caractristiquesdedmodulationdessignauxdechrominancepropres chaquesystmecouleur(NTSC,PALetSECAM) . 2

42、68 6.3.1 Erreursdechrominancesurlescomposantesissues deladmodulationangulairedusignalsystmeNTSC 268 6.3.2 Erreursdechrominanceissuesdeladmodulationangulaire dusignalsystmePAL 272 6.3.3 Effetspourdespetitessurfacesdelimagedeladistorsionde phaseinhrenteausignalsystmePAL. 274 6.3.4 Equilibrageenamplitu

43、dedessignauxissusdesvoiesdirecte etretardesystmeSECAM 276 6.3.5 Irisationscoloresenprsencedetransitionsdeluminance systmeSECAM 278601071 IEC:1997 7 Clause Page 5.3.5 Imageinterferenceratio 171 5.3.6 Intermodulationinterferenceratio 175 5.3.7 Crossmodulationinterferenceratio. 179 5.3.8 IFbeatinterferenceratio. 183 5.3.9 Spuriousfrequencyinterferenceratio 183 5.3.10 Internallygeneratedinterference. 185 6 Characteristicsoflum

展开阅读全文
相关资源
  • IEC TS 62492-1-2008 Industrial process control devices - Radiation thermometers - Part 1 Technical data for radiation thermometers《工业过程控制装置 辐射温度计 第1部分 辐射温度计的技术数.pdfIEC TS 62492-1-2008 Industrial process control devices - Radiation thermometers - Part 1 Technical data for radiation thermometers《工业过程控制装置 辐射温度计 第1部分 辐射温度计的技术数.pdf
  • IEC TR2 61464-1998 Insulated bushings - Guide for the interpretation of dissolved gas analysis (DGA) in bushings where oil is the impregnating medium of the mai.pdfIEC TR2 61464-1998 Insulated bushings - Guide for the interpretation of dissolved gas analysis (DGA) in bushings where oil is the impregnating medium of the mai.pdf
  • IEC TR 61241-2-2-1993 Electrical apparatus for use in the presence of combustible dust part 2 test methods section 2 method for determining the electrical resis.pdfIEC TR 61241-2-2-1993 Electrical apparatus for use in the presence of combustible dust part 2 test methods section 2 method for determining the electrical resis.pdf
  • IEC TR 60972-1989 Classification and interpretation of new lighting products《新型照明产品的分类和说明》.pdfIEC TR 60972-1989 Classification and interpretation of new lighting products《新型照明产品的分类和说明》.pdf
  • IEC TR 60943 Edition 21-2009 Guidance concerning the permissible temperature rise for parts of electrical equipment in particular for terminals《特殊终端中电气设备部件用关于允许.pdfIEC TR 60943 Edition 21-2009 Guidance concerning the permissible temperature rise for parts of electrical equipment in particular for terminals《特殊终端中电气设备部件用关于允许.pdf
  • IEC TR 60943 AMD 1-2008 Guidance concerning the permissible temperature rise for parts of electrical equipment in particular for terminals Amendment 1《电气设备部件(特别.pdfIEC TR 60943 AMD 1-2008 Guidance concerning the permissible temperature rise for parts of electrical equipment in particular for terminals Amendment 1《电气设备部件(特别.pdf
  • IEC TR 60919-2-2008 Performance of high-voltage direct current (HVDC) systems with line-communicated converters - Part 2 Faults and switching《带线性通信转换器的高压直流(HVDC.pdfIEC TR 60919-2-2008 Performance of high-voltage direct current (HVDC) systems with line-communicated converters - Part 2 Faults and switching《带线性通信转换器的高压直流(HVDC.pdf
  • IEC TR 60870-6-505 Edition 11-2006 Telecontrol equipment and systems - Part.6-505 Telecontrol protocols compatible with ISO standards and ITU-T recommendations .pdfIEC TR 60870-6-505 Edition 11-2006 Telecontrol equipment and systems - Part.6-505 Telecontrol protocols compatible with ISO standards and ITU-T recommendations .pdf
  • IEC TR 60344 CORR1-2012 Calculation of d c resistance of plain and coated copper conductors of low-frequency cables and wires - Application guide Corrigendum 1《.pdfIEC TR 60344 CORR1-2012 Calculation of d c resistance of plain and coated copper conductors of low-frequency cables and wires - Application guide Corrigendum 1《.pdf
  • IEC 62560 CORR1-2012 Self-ballasted LED-lamps for general lighting services by voltage 50 V - Safety specifications Corrigendum 1《普通照明用50 V以上自镇流LED灯 安全要求 勘误表1》.pdfIEC 62560 CORR1-2012 Self-ballasted LED-lamps for general lighting services by voltage 50 V - Safety specifications Corrigendum 1《普通照明用50 V以上自镇流LED灯 安全要求 勘误表1》.pdf
  • 猜你喜欢
  • NF S76-012-1998 Respiratory protective devices - Half masks and quarter masks - Requirements testing marking 《呼吸保护装置 半面罩和四分之一面罩 要求、试验和标记》.pdf NF S76-012-1998 Respiratory protective devices - Half masks and quarter masks - Requirements testing marking 《呼吸保护装置 半面罩和四分之一面罩 要求、试验和标记》.pdf
  • NF S76-023-1-1999 Respiratory protective devices Threads for facepieces Part 1  standard thread connection 《呼吸保护装置 面具螺纹 第1部分 标准螺纹连接件》.pdf NF S76-023-1-1999 Respiratory protective devices Threads for facepieces Part 1 standard thread connection 《呼吸保护装置 面具螺纹 第1部分 标准螺纹连接件》.pdf
  • NF S76-023-2-1999 Respiratory protective devices Threads for facepieces Part 2  centre thread connection 《呼吸保护装置 面具用螺纹 第2部分 中心螺纹连接件》.pdf NF S76-023-2-1999 Respiratory protective devices Threads for facepieces Part 2 centre thread connection 《呼吸保护装置 面具用螺纹 第2部分 中心螺纹连接件》.pdf
  • NF S76-023-3-1999 Respiratory protective devices Threads for facepieces Part 3  thread connection M 45 X 3 《呼吸保护装置 面具螺纹 第3部分 螺纹连接件 M 45 x 3》.pdf NF S76-023-3-1999 Respiratory protective devices Threads for facepieces Part 3 thread connection M 45 X 3 《呼吸保护装置 面具螺纹 第3部分 螺纹连接件 M 45 x 3》.pdf
  • NF S76-027-1998 Respiratory protective devices Filters with breathing hoses particle filters gas filters and combined filters (non-mask mounted filters) Requirements testing markin.pdf NF S76-027-1998 Respiratory protective devices Filters with breathing hoses particle filters gas filters and combined filters (non-mask mounted filters) Requirements testing markin.pdf
  • NF S76-032-1995 Respiratory protective devices Fresh air hose breathing apparatus for use with full face mask half mask or mouthpiece assembly Requirements testing marking 《呼吸保护装置 .pdf NF S76-032-1995 Respiratory protective devices Fresh air hose breathing apparatus for use with full face mask half mask or mouthpiece assembly Requirements testing marking 《呼吸保护装置 .pdf
  • NF S76-034-1998 Respiratory protective devices Powered filtering devices incorporating a helmet or a hood Requirements testing marking 《呼吸保护装置 装有头盔或护套的动力过滤装置 要求、试验和标记》.pdf NF S76-034-1998 Respiratory protective devices Powered filtering devices incorporating a helmet or a hood Requirements testing marking 《呼吸保护装置 装有头盔或护套的动力过滤装置 要求、试验和标记》.pdf
  • NF S76-035-1998 Respiratory protective devices Power assisted filtering devices incorporating full face masks half masks or quarter masks Requirements testing marking 《呼吸保护装置 装有全面罩.pdf NF S76-035-1998 Respiratory protective devices Power assisted filtering devices incorporating full face masks half masks or quarter masks Requirements testing marking 《呼吸保护装置 装有全面罩.pdf
  • NF S76-036-1997 Respiratory protective devices - Self-contained closed-circuit breathing apparatus compressed oxygen or compressed oxygen-nitrogen type - Requirements testing marki.pdf NF S76-036-1997 Respiratory protective devices - Self-contained closed-circuit breathing apparatus compressed oxygen or compressed oxygen-nitrogen type - Requirements testing marki.pdf
  • 相关搜索

    当前位置:首页 > 标准规范 > 国际标准 > IEC

    copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有
    备案/许可证编号:苏ICP备17064731号-1