YS/T 520.4-2006 镓化学分析方法 4 7-二苯基-1 10-二氮杂菲光度法测定铁量
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来源:标准资料网
基本信息
| 标准名称： | 镓化学分析方法 4 7-二苯基-1 10-二氮杂菲光度法测定铁量 |
| 英文名称： | Methods for chemical analysis of gallium The 4 7-diphenyl-1 10-phenanthroline photometric method for the determination of iron content |
| 中标分类： |
冶金 >>
金属化学分析方法 >>
稀有金属及其合金分析方法 |
| ICS分类： |
冶金 >>
有色金属 >>
镉、钴及其合金
|
| 替代情况： | 原标准号GB/T 4375.4-1984;被YS/T 520.4-2007代替 |
| 发布日期： | 2006-07-27 |
| 实施日期： | 2006-10-11 |
| 首发日期： | |
| 作废日期： | 2008-05-01 |
| 出版日期： | |
| 页数： | 3页 |
适用范围
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前言
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引用标准
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所属分类： 冶金 金属化学分析方法 稀有金属及其合金分析方法 冶金 有色金属 镉 钴及其合金
Product Code:SAE J1113/27
Title:Electromagnetic Compatibility Measurements Procedure for Vehicle Components - Part 27 - Immunity to Radiated Electromagnetic Fields - Mode Stir Reverberation Method
Issuing Committee:Electromagnetic Compatibility (Emc) Standards
Scope:Scope: Vehicle electrical/electronic systems may be affected when immersed in an electromagnetic field generated by sources such as radio and TV broadcast stations, radar and communication sites, mobile transmitters, cellular phones, etc. Reverberation method is used to evaluate the immunity of electronic devices in the frequency range of 500 MHz to 2.0 GHz, with possible extensions to 200 MHz and 10 GHz, depending upon chamber size and construction. Optional pulse modulation testingat HIRF (High Intensity Radiated Fields) test levels, based upon currently known environmental threats, has been added to this revision of the standard. This document addresses the Mode Stir (Continous Stirring) Reverberation testing method which has been successfully utilized as a design and production stage development tool for many years. The Mode Tuned (Stepped Tuner) Reverberation testing method is covered in the SAE J1113-28 document.1.2 This document provides the component design and test engineers with a test procedure and the performance requirements necessary to quickly evaluate the immunity of electronic devices to radiated electromagnetic fields early in the design stage as well as pilot and production stages. This method is an alternative to testing in an absorber lined chamber. Ensuring electromagnetic compatibility early in the development stage will minimize costly changes later in the program and will prevent excessive component level hardening during full-vehicle level testing.1.3 The reverberation test method performs a dual function:1.3.1 The primary function of the method is to provide a bench test procedure correlative to vehicle-level radiated immunity testing in the anechoic chamber and at mobile transmitter sites.1.3.2 The method can quickly evaluate the relative performance of different designs of the same device.【英文标准名称】:Welding-Acceptanceinspectionofelectronbeamweldingmachines-Part1:principlesandacceptanceconditions.
【原文标准名称】:焊接.电子束焊接机的验收检验.第1部分:原则和验收条件
【标准号】:NFA89-700-1-2000
【标准状态】:作废
【国别】:法国
【发布日期】:2000-09-01
【实施或试行日期】:2000-09-05
【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】:Acceptanceinspection;Acceptancespecification;Basis;Beamcurrent;Electricwelding;Electronbeams;Electron-beamwelding;Fusionwelding;Inspection;Lenscurrent;Movementaccuracy;Ratings;Speed;Symbols;Testing;Tolerances(measurement);Welding;Weldingengineering;Weldingequipment;Weldingmachines;Weldingparameters;Weldingpointpositiontolerance
【摘要】:
【中国标准分类号】:J61
【国际标准分类号】:25_160_30
【页数】:14P.;A4
【正文语种】:其他
