SAE ARP4252 Instrumental Methods of Determining Surface Cleanliness (NONCURRENT Aug 2006)
时间:2024-05-27 04:57:22 来源: 标准资料网 作者：标准资料网 阅读：8325
Product Code:SAE ARP4252
Title:Instrumental Methods of Determining Surface Cleanliness (NONCURRENT Aug 2006)
Issuing Committee:Ams B Finishes Processes And Fluids Committee
Scope:This Aerospace Recommended Practice is intended as a guide toward standard practices for the determination of surface cleanliness that are applicable to field operation. Some of these methods can also be used to determine quality assurance that a surface has been properly prepared and maintained.The instrumental methods are: Wettabaility, Surface Potential Difference (SPD), Ellipsometry, and Optically Stimulated Electron Emission (OSEE). Each instrument is described with respect to measurement techniques, limitations, and advantages and types of available instruments. Elementary theoretical prinicples and examples of the use of each instrument are also given.
【英文标准名称】:FixedRadioSystems-Point-to-pointequipment-HighcapacityfixedradiosystemscarryingSDHsignals(2×STM-1)infrequencybandswith40MHzchannelspacingandusingCo-channelDualPolarized(CCDP)operation(EndorsementoftheEnglishversionEN
【原文标准名称】:固定无线电系统.点对点设备.使用同波道双极化(CCDP)操作的有40MHz信道空间的频带中承载SDH信号(2PSTM-1)的高容量数字无线电系统
【标准号】:DINEN301461-2001
【标准状态】:作废
【国别】:德国
【发布日期】:2001-03
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:频率范围;频率;通道;容量;频带;信号传输;设备;无线电设备;规范(验收);试验;无线电工程;操作;电信
【英文主题词】:equipment;specification(approval);capacity;operation;telecommunications;bandoffrequencies;channels;frequencies;radioengineering;testing;radioequipment;frequencyranges;signaltransmission
【摘要】:
【中国标准分类号】:M36
【国际标准分类号】:33_060_30
【页数】:1P;A4
【正文语种】:德语
【英文标准名称】:Testsforelectriccablesunderfireconditions-Circuitintegrity-Part1:Testmethodforfirewithshockatatemperatureofatleast830°Cforcablesofratedvoltageuptoandincluding0,6/1,0kVandwithanoveralldiameterexceeding20mm
【原文标准名称】:电缆在着火条件下的试验.电路完整性.第1部分:额定电压高达(和包括)0.6/1.0KV,全径大于20mm的电缆在温度不低于830°C的冲击火焰下的试验方法
【标准号】:IEC60331-1-2009
【标准状态】:现行
【国别】:国际
【发布日期】:2009-05
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC20
【标准类型】:()
【标准水平】:()
【中文主题词】:燃烧特性;定义;电缆;电线;电气工程;电气试验;耐火性;燃烧试验;性能要求;冲击;规范(验收);试验仪表;试验报告;试验;试验条件
【英文主题词】:Burningbehaviours;Definitions;Electriccables;Electricalcords;Electricalengineering;Electricaltesting;Fireresistance;Flametest;Performancerequirements;Shock;Specification(approval);Testapparatus;Testreports;Testing;Testingconditions
【摘要】:
【中国标准分类号】:K13
【国际标准分类号】:13_220_40;29_020;29_060_20
【页数】:48P;A4
【正文语种】:英语