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BS ISO 6851-2002 摄影.冲洗废液.氨态氮总含量的测定(基耶达微扩散法)

上一篇: NF T47-203-2002 橡胶或塑料软管.弯曲试验
下一篇: BS ISO 6853-2002 摄影.冲洗废液.氨态氮含量的测定(微扩散法)

Product Code:SAE ARP1048
Title:Instrument and Cockpit Illumination for General Aviation Aircraft
Issuing Committee:A-20ac Crew Station And Interior Lighting Committee
Scope: The desired system for general aviation aircraft instrument panel and cockpit lighting should furnish light of adequate intensity and distribution under all conditions of external illumination so that the crew may read instrumentation, placards, check lists, manuals, maps, instrument color coding, and distinguish controls without undue interference with their vision outside of the aircraft. Heretofore, considerable effort has been made to insure night vision adaptation at all costs. Efforts to maintain this adaptation have been based on certain military requirements, night flight involving pilotage and takeoffs or landings using only moonlight or less light intensity. With present navigational methods, adequate airport lighting and aircraft landing lights, night vision adaptation is rarely necessary. Lighting at low illumination levels often creates a compromise in visibility within the cockpit which may cause serious problems as a result of improper map reading, improper fuel selection, etc. Adequate and comfortable lighting should, in most instances, be the primary goal. The dangers of inadequate lighting within the cockpit appear to be greater, at present, than the advantages of maintaining night vision.tion, etc. Adequate and comfortable lighting should, in most instances, be the primary goal. The dangers of inadequate lighting within the cockpit appear to be greater, at present, than the advantages of maintaining night vision.tion, etc. Adequate and comfortable lightion, etc. Adequate and comfortable lighting should, in most instances, be the primary goal. The dangers of inadequate lighting within the cockpit appear to be greater, at present, than the advantages of maintaining night vision.tion, etc. Adequate and comfortable lighting should, in most instances, be the primary goal. The dangers of inadequate lighting within the cockpit appear to be greater, at present, than the advantages of maintaining night vision.tion, etc. Adequate and comfortable lighting should, in most instances, be the primary goal. The dangers of inadequate lighting within the cockpit appear to be greater, at present, than the advantages of maintaining night vision.tion, etc. Adequate and comfortable lighting should, in most instances, be the primary goal. The dangers of inadequate lighting within the cockpit appear to be greater, at present, than the advantages of maintaining night vision.ting should, in most instances, be the primary goal. The dangers of inadequate lighting within the cockpit appear to be greater, at present, than the advantages of maintaining night vision.tion, etc. Adequate and comfortable lighting should, in most instances, be the primary goal. The dangers of inadequate lighting within the cockpit appear to be greater, at present, than the advantages of maintaining night vision.【英文标准名称】:Measurementmicrophones-Part4:Specificationsforworkingstandardmicrophones(IEC61094-4:1995);GermanversionEN61094-4:1995
【原文标准名称】:测量传声器.第4部分:工作标准传声器规范
【标准号】:EN61094-4-1995
【标准状态】:现行
【国别】:
【发布日期】:1996-05
【实施或试行日期】:
【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】:声学;测定;测量仪器;校正;特性;规范(验收);测量技术;测量;尺寸;传声器;分类;定义;电声器件;声压;分类系统;电声学;测量扩音器
【英文主题词】:Acoustics;Acoustoelectricdevices;Calibration;Classification;Classificationsystems;Definition;Determinations;Dimensions;Electricalengineering;Electroacoustics;Measurement;Measurementmicrophones;Measuringinstruments;Measuringtechniques;Microphones;Properties;Soundpressure;Specification;Specification(approval)
【摘要】:
【中国标准分类号】:M72
【国际标准分类号】:17_140_50;33_160_50
【页数】:11P.;A4
【正文语种】:英语

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