EN 779-2002 一般通风用空气颗粒过滤器.过滤性能测定
时间:2024-05-19 14:21:35 来源: 标准资料网 作者：标准资料网 阅读：8393
【英文标准名称】:Particulateairfiltersforgeneralventilation-Determinationofthefiltrationperformance;GermanversionEN779:2002
【原文标准名称】:一般通风用空气颗粒过滤器.过滤性能测定
【标准号】:EN779-2002
【标准状态】:现行
【国别】:
【发布日期】:2003-05
【实施或试行日期】:2003-05-01
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:效率;过滤器分类;静电放电;规范(验收);定义;测试用灰尘;试验台;作标记;机械工程;静电学;空气净化设备;气溶胶;过滤器;空调系统;通风;总论;试验;分离效果;分类;颗粒滤器;空气过滤器;颗粒
【英文主题词】:Aerosols;Aircleaningequipment;Airfilters;Air-conditioningsystems;Classification;Definition;Definitions;Efficiency;Electrostaticdischarges;Electrostatics;Filterclass;Filters;Generalsection;Marking;Mechanicalengineering;Particlefilters;Particles;Separationefficiency;Specification(approval);Testbenches;Testing;Testingdust;Ventilation
【摘要】:
【中国标准分类号】:J77
【国际标准分类号】:91_140_30
【页数】:72P.;A4
【正文语种】:英语
MIL-DTL-19803G, DETAIL SPECIFICATION: CONVERTER, LIQUID OXYGEN, 10-LITER, GCU-24A/A (05 FEB 2007) [SUPERSEDING MIL-C-19803F]., This specification covers one type of aircraft converter, GCU-24A/A, used for storing and pressuring 10 liters of liquid oxygen.【英文标准名称】:Opticalfibres.Measurementmethodsandtestprocedures.Cut-offwavelength
【原文标准名称】:光学纤维.测量方法和试验规程.截止波长
【标准号】:BSEN60793-1-44-2011
【标准状态】:现行
【国别】:英国
【发布日期】:2011-07-31
【实施或试行日期】:2011-07-31
【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】:
【英文主题词】:Cut-offwavelength;Dimensions;Electricalengineering;Fibreoptics;Measurement;Measuringtechniques;Monomodefibres;Opticalwaveguides;Testing;Wavelengths
【摘要】:ThispartofIEC60793establishesuniformrequirementsformeasuringthecut-offwavelengthofsingle-modeopticalfibre,therebyassistingintheinspectionoffibresandcablesforcommercialpurposes.Thisstandardgivesthemethodsformeasuringthecut-offwavelengthoffibreandcableTherearetwomethodsformeasuringcablecut-offwavelength,λcc:·MethodA:usinguncabledfibre;·MethodB:usingcabledfibre.Thereisonlyonemethod(MethodC)formeasuringfibrecut-offwavelength,λc.Thetestmethodinthisstandarddescribesproceduresfordeterminingthecut-offwavelengthofasamplefibreineitheranuncabledcondition(λc)orinacable(λcc).Threedefaultconfigurationsaregivenhere:anydifferentconfigurationwillbegiveninadetailspecification.TheseproceduresapplytoallcategoryBandCfibretypes(seeNormativereferences).Allmethodsrequireareferencemeasurement.Therearetworeference-scantechniques,eitherorbothofwhichmaybeusedwithallmethods:·bend-referencetechnique;·multimode-referencetechniqueusingcategoryA1multimodefibre.
【中国标准分类号】:M33
【国际标准分类号】:33_180_10
【页数】:26P.;A4
【正文语种】:英语