ANSI/AWWA C150/A 21.50-2002 球墨铸铁管的厚度设计

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Product Code:SAE J823
Title:Flasher Test
Issuing Committee:Electromechanical Electronic Devices Task Force
Scope:This SAE Standard specifies the test procedure, test circuitry, and instruments required for measuring the performance of flashers used in motor vehicles.【英文标准名称】:Acoustics-Determinationofsoundpowerlevelsofnoisesourcesusingsoundpressure-Precisionmethodsforanechoicandhemi-anechoicrooms
【原文标准名称】:声学.利用声压测定噪声源声功率级.消声室和半消声室用精密法
【标准号】:ANSIS12.55-2006
【标准状态】:作废
【国别】:美国
【发布日期】:2006-04-27
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:声学测量;声学;封闭式试验室;定义;包络面法;实验室试验;数学计算;测量;测量技术;噪声(环境的);噪声测量;噪声源;反射;混响室;声能;声强;声级;声功率;声压;声压级;声源
【英文主题词】:Acousticmeasurement;Acoustics;Closedtestrooms;Definition;Definitions;Envelopingsurfacemethods;Laboratorytesting;Laboratorytests;Mathematicalcalculations;Measurement;Measuringtechniques;Noise(environmental);Noisemeasurements;Noisesources;Reflection;Reverberationrooms;Soundenergy;Soundintensity;Soundlevel;Soundlevels;Soundpower;Soundpressure;Soundpressurelevel;Soundsources
【摘要】:Specifiesmethodsformeasuringthesoundpressurelevelsonameasurementsurfaceenvelopinganoisesourceinanechoicandhemi-anechoicrooms,inordertodeterminethesoundpowerlevelorsoundenergylevelproducedbythenoisesource.Givesrequir
【中国标准分类号】:A59
【国际标准分类号】:17_140_01
【页数】:
【正文语种】:英语