NF C97-390-1993 音响系统设备.第10部分:峰值音量电平表
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来源:标准资料网
【英文标准名称】:Soundsystemequipment.Part10:peakprogrammelevelmeters.
【原文标准名称】:音响系统设备.第10部分:峰值音量电平表
【标准号】:NFC97-390-1993
【标准状态】:现行
【国别】:法国
【发布日期】:1993-03-01
【实施或试行日期】:1993-03-20
【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】:
【英文主题词】:
【摘要】:
【中国标准分类号】:M72
【国际标准分类号】:17_140_50
【页数】:34P;A4
【正文语种】:其他
【英文标准名称】:Petroleumproducts-Determinationofvanadiumandnickelcontent-Wavelength-dispersiveX-rayfluorescencespectrometry(ISO14597:1997);GermanversionENISO14597:1999
【原文标准名称】:矿物油制品.钒和镍含量的测定.波长色散X射线荧光分析法
【标准号】:ENISO14597-1999
【标准状态】:现行
【国别】:
【发布日期】:1999-03
【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】:液体燃料;含量测定;镍;石油产品;钒;化学分析和试验;X射线荧光光谱法
【英文主题词】:Analysis;Chemicalanalysisandtesting;Content;Determinationofcontent;Fuels;Liquidfuels;Mineraloils;Nickel;Petroleumproducts;Testing;Vanadium;X-rayanalysis;X-rayfluorescencespectrometry
【摘要】:
【中国标准分类号】:E30
【国际标准分类号】:75_080
【页数】:8P.;A4
【正文语种】:英语
Product Code:SAE ARP4169
Title:Night Vision Goggle (Nvg) Filters
Issuing Committee:A-20ac Crew Station And Interior Lighting Committee
Scope:This SAE Aerospace Recommended Practice describes the functions and characteristics of NVG filters used in NVG compatible lighting. Night vision goggle compatible lighting is the condition in which the spectral wavelengths, luminance level and uniformity of the cockpit lighting do not interfere with the operation of night vision goggles. NVG compatible lighting permits a crew member to observe outside scenes through night vision goggles while maintaining the ability to recognize master caution/warning indicators inside the cockpit. Also, with NVG compatible lighting, all necessary information in the crew station is easily seen by a crew member with unaided eyes.