ASTM F 2269-2003 运动场草皮暖季维护的标准指南

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【英文标准名称】:Acoustics-Measurementofsoundpressurelevelsintheinteriorofaircraftduringflight
【原文标准名称】:声学飞行中飞机内声压级的测量
【标准号】:ISO5129-2001
【标准状态】:现行
【国别】:国际
【发布日期】:2001-10
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC43
【标准类型】:()
【标准水平】:()
【中文主题词】:内部修整;内部;声学测量;噪声辐射;噪声(环境的);试验条件;测量技术;声级;声压;声学;飞行器;测量仪器;定义;测定;声学试验;声强;噪声测量;声压级;试验;试验报告
【英文主题词】:Acousticmeasurement;Acoustictesting;Acoustics;Aircraft;Aircrafts;Calibration;Checkpoint;Crew;Dataanalysis;Definitions;Determination;Filters;Insidenoise;Insidenoiselevel;Interiortrim;Internal;Measurement;Measurementconditions;Measuringinstruments;Measuringtechniques;Noise;Noiseemissions;Noise(environmental);Noisemeasurements;Soundintensity;Soundlevels;Soundpressure;Soundpressurelevel;Soundsources;Sound-levelmeters;Taperecorders;Testmeasurements;Testreport;Testing;Testingconditions;Vibrationengineering;Workingplaces
【摘要】:1ThisInternationalStandardspecifiesrequirementsforinstrumentsandtestproceduresforthemeasurementandreportingofsoundpressurelevelsatcrewandpassengerlocationsintheinteriorofaircraftundersteadyflightconditions.Thesoundpressurelevelsmaybeusedtodeterminevariousquantitiesfordescribingtheacousticalenvironmentintheinterioroftheaircraft.Theproceduresareintendedtoensureuniformityintestresultsandtoprovidethebasisfordeterminationofmeasurementuncertainties.2ThisInternationalStandardprovideselectroacousticalperformancespecificationsforacompletemeasurementsystemfromamicrophonetothereadoutdevice.VariousindividualcomponentsofameasurementsystemmaybeselectedsolongasthetotalmeasurementsystemconformstothespecificationsofthisInternationalStandard.3Thepreferredmeasurementprocedureinvolvestherecordingofsoundpressuresignalswithsubsequentanalysisintoone-third-octavebandsoundpressurelevels.Directmeasurementsmaybemadeofone-third-octave-bandsoundpressurelevels.
【中国标准分类号】:Z32
【国际标准分类号】:17_140_30;49_020
【页数】:10P.;A4
【正文语种】:英语


【英文标准名称】:Measurementofcoatingthickness;determinationofthemassperunitareaofzincandtin-coatingsonferrousmaterialsbydissolutionofthecoatingmaterial;volumetricmethod
【原文标准名称】:涂层厚度测量.用涂层材料溶解作用测量铁素体材料上涂层的单位面积锌和锡的重量.容量分析法
【标准号】:DIN50988-2-1988
【标准状态】:现行
【国别】:德国
【发布日期】:1988-04
【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】:重量测量;厚度测量;砝码;测量技术;防腐蚀;覆层;测量;覆层厚度;锌;容量分析;锡;铁;复合材料;质量(物质);金属覆层
【英文主题词】:Coatingthickness;Coatings;Compositematerials;Corrosionprotection;Iron;Mass;Measurement;Measuringtechniques;Metalcoatings;Thicknessmeasurement;Tin;Volumetricanalysis;Weightmeasurement;Weights;Z
【摘要】:Thisstandarddescribesmethodsforthedeterminationofthemassperunitareaofzinc-andtin-coatingsonferrousmaterialsbydissolutionofthecoatingmaterial.
【中国标准分类号】:A29
【国际标准分类号】:17_040_20
【页数】:3P;A4
【正文语种】:德语