NF F51-011-2001 铁路设施.轨道.枕木和托架

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【英文标准名称】:Railwayapplications-Track-Woodsleepersandbearers.
【原文标准名称】:铁路设施.轨道.枕木和托架
【标准号】:NFF51-011-2001
【标准状态】:现行
【国别】:法国
【发布日期】:2001-04-01
【实施或试行日期】:2001-04-20
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:质量要求;形状;固定件;处理;处理;轨枕;木材;铁路设施;持久性;;枕木;轨道紧固系统;铁路建造;电容性负载;道岔;铁路设备;轨道(物料装卸设备);尺寸;耐久性;保存;铁路;紧固件;定义;定义;试验
【英文主题词】:
【摘要】:
【中国标准分类号】:S11
【国际标准分类号】:79_040;93_100
【页数】:19P;A4
【正文语种】:其他


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【英文标准名称】:Pressureresistantcircularsightglassesfortemperaturesupto150C,withoutlimitationintherangeoflowtemperature
【原文标准名称】:150℃以下受压圆形观察窗玻璃在低温范围内没有限制
【标准号】:DIN8902-1979
【标准状态】:作废
【国别】:德国
【发布日期】:1979-03
【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】:尺寸;压力;材料;作标记;温度;玻璃;安全;容器;公差;包装件;抗压应力;视孔玻璃;材料强度
【英文主题词】:tolerances(measurement);pressure;glass;temperature;marking;dimensions;compressionstresses;sightglasses;containers;safety;materials;packages;strengthofmaterials
【摘要】:
【中国标准分类号】:Q34
【国际标准分类号】:5580
【页数】:4P;A4
【正文语种】:德语


【英文标准名称】:Acoustics-Measurementofairbornenoiseemittedbyinformationtechnologyandtelecommunicationsequipment
【原文标准名称】:声学.信息技术设备和电信设备发出的空气噪声的测量
【标准号】:BSENISO7779-2001
【标准状态】:作废
【国别】:英国
【发布日期】:2001-10-25
【实施或试行日期】:2001-10-25
【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】:数据处理;声学;数据处理设备;办公室设备;噪声(环境的);通信设备;声学试验;空气噪声;声学测量;计算机
【英文主题词】:Acousticmeasurement;Acoustictesting;Acoustics;Airbornenoise;Airbornenoiseemitted;Airbornesound;Cables;Calibration;Clayfraction;Comparison;Computers;Corrrections;Data;Dataprocessing;Dataprocessingequipment;Definitions;Determination;Envelopingsurfacemethods;Environment;Externalnoise;Filters;Freefields;Frequencies;Handling;Informationtechnology;Inputvoltage;Installations;Instruments;Layout;Loudnesslevels;Machinenoise;Machines;Measurement;Measurementduration;Measuringbanks;Measuringenvironment;Measuringincertainity;Measuringinstruments;Measuringrooms;Measuringsurfaces;Measuringsystems;Methods;Microphones;Moisture;Noise;Noisecontrol;Noiseemissions;Noise(environmental);Noisemeasurements;Officeequipment;Officemachines;Operatingconditions;Operatingstations;Operation;Operators;PC;Personalcomputers;Precision;Pressure;Printers;Reflection;Reverberationroommethod;Reverberationrooms;Rotation;Sitting;Soundintensity;Soundlevel;Soundpressure;Soundpressurelevel;Soundsources;Tables;Telecommunications;Temperature;Terminals;Testing;Typeofunit;Workingplaces
【摘要】:ThisInternationalStandardspecifiesproceduresformeasuringandreportingthenoiseemissionofinformationtechnologyandtelecommunicationsequipment.Thisstandardisconsideredpartofanoisetestcodeforthistypeofequipment,andisbasedonbasicnoiseemissionstandardsISO3741,ISO3744,ISO3745andISO11201.ThebasicemissionquantityistheA-weightedsoundpowerlevelwhichmaybeusedforcomparingequipmentofthesametypebutfromdifferentmanufacturers,orforcomparingdifferentequipment.ThreebasicnoiseemissionstandardsfordeterminingthesoundpowerlevelsarespecifiedinthisInternationalStandardinordertoavoidunduerestrictiononexistingfacilitiesandexperience.Thefirstbasicstandard(ISO3741)specifiescomparisonmeasurementsinareverberationroom;theothertwo(ISO3744andISO3745)specifymeasurementsinanessentiallyfreefieldoverareflectingplane.AnyoneofthesethreebasicnoiseemissionstandardsmaybeselectedandshallthenbeusedexclusivelyaccordingtothisInternationalStandardwhendeterminingsoundpowerlevelsofamachine.TheA-weightedsoundpowerlevelissupplementedbytheA-weightedsoundpressurelevelmeasuredattheoperatorposition(s)orthebystanderpositions,basedonthebasicnoiseemissionstandardISO11201.Thissoundpressurelevelisnotaworker'simmissionratinglevel,butitmayassistinidentifyinganypotentialproblemsthatcouldcauseannoyance,activityinterference,orhearingdamagetooperatorsandbystanders.MethodsfordeterminingwhetherthenoiseemissionincludesprominentdiscretetonesorisimpulsiveincharacterarespecifiedinannexesDandErespectively.ThisInternationalStandardissuitablefortypetestsandprovidesmethodsformanufacturersandtestinglaboratoriestoobtaincomparableresults.ThemethodsspecifiedinthisInternationalStandardallowthedeterminationofnoiseemissionlevelsforaunittestedindividually.Theproceduresmaybeappliedtoequipmentwhichemitsbroad-bandnoise,narrow-bandnoiseandnoisewhichcontainsdiscrete-frequencycomponents,orimpulsivenoise.Thesoundpowerandsoundpressurelevelsobtainedmayservenoiseemissiondeclarationandcomparisonpurposes(seeISO9296).Theyarenottobeconsideredasinstallationnoiseimmissionlevels;howevertheymaybeusedforinstallationplanning(seeECMATR/27).Ifsoundpowerlevelsobtainedaredeterminedforanumberofunitsofthesameproductionseries,theycanbeusedtodetermineastatisticalvalueforthatproductionseries(ISO9296).
【中国标准分类号】:Z32
【国际标准分类号】:17_140_20;35_020
【页数】:76P.;A4
【正文语种】:英语