MIL-STD-1809, MILITARY STANDARD: SPACE ENVIRONMENT FOR USAF SPACE VEHICLES (15 FEB 1991)., The purpose and scope of this document is to state the parameters of the earth's natural environment, above 100 kilometers, for use in space vehicle and space system design.【英文标准名称】:Determinationofratinglevelsfrommeasurements-Part2:Noiseimmissionsattheworkplace
【原文标准名称】:测量评定声级.第2部分:工作场所噪声发散
【标准号】:DIN45645-2-1997
【标准状态】:作废
【国别】:德国
【发布日期】:1997-07
【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】:极限(数学);声强;频率;声学;评定;定义;尺寸;尺寸;试验报告;普通级;测量;机器;连续声级;外部噪声;静止的;磁带;测量仪器;传声器;噪声级;声音;声级计;符号;动量;校正;工作地点;额定级;声级表;精密度;磨损量;声压级;噪声测量
【英文主题词】:Acoustics;Averaginglevels;Calibration;Continuoussoundlevels;Definitions;Dimensions;Evaluations;Externalnoise;Frequencies;Levelmeasuringset;Limits(mathematics);Machines;Magnetictapes;Measurement;Measuringinstruments;Measuringsites;Measuringtimes;Microphones;Momentum;Noiseimmisions;Noiselevels;Noisemeasurements;Precision;Ratinglevels;Size;Sound;Soundabsorption;Soundintensity;Soundmeters;Soundpressurelevel;Sound-levelmeters;Stationary;Symbols;Testreport;Wear-quantity;Workingplaces
【摘要】:
【中国标准分类号】:Z32
【国际标准分类号】:17_140_20
【页数】:14P;A4
【正文语种】:德语