SAE ARP743 Procedure for the Determination of Particulate Contamination of Air in Dust Controlled Spaces By the Particle

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Product Code:SAE ARP743
Title:Procedure for the Determination of Particulate Contamination of Air in Dust Controlled Spaces By the Particle Count Method (Cancelled May 2010)
Issuing Committee:A-6c1 Contamination And Filtration Committee
Scope:this SAE Aerospace Recommended Practice (ARP) describes two procedures for sampling particles in dust controlled spaces. One procedure covers airborne dust above 5 μm. The other (and newly added procedure) covers particles of 25 μm and larger that "fall out" of the environment onto surfaces. In each case the particles are sized in the longest dimension and counted. Airborne particles are reported as particles per cubic meter (cubic foot) whereas particles collected in fall out samples are reported as particles per 0.1 square meter (square foot). This document includes English units in parentheses as referenced information to the SI units where meaningful.These procedures may also be used for environmental analysis where the quality of the particles by visual or chemical analysis is intended.
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基本信息
标准名称:2GHz TD-SCDMA数字蜂窝移动通信网 Iub接口技术要求 第一部分:总则
英文名称:Technical requirements for Iub interface of 2GHz TD-SCDMA digital cellular mobile communication network part 1:general aspects
中标分类: 通信、广播 >> 通信设备 >> 移动通信设备
ICS分类:
发布部门:中华人民共和国信息产业部
发布日期:2006-01-20
实施日期:2006-01-20
首发日期:
作废日期:
提出单位:中国通信标准化协会
归口单位:中国通信标准化协会
起草单位:信息产业部电信研究院、大唐电信科技产业集团
起草人:乌娜、贺敬、武珂、李文宇
出版社:人民邮电出版社
出版日期:2006-01-20
页数:18页
适用范围

本部分规定了2GHz TD-SCDMA数字蜂窝移动通信网Iub接口的总体描述、Iub接口协议的功能、Iub接口中Node B的逻辑模型与Iub接口协议结构的一般规则。本部分适用于2GHz TD-SCDMA数字蜂窝移动通信网的Iub接口。

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所属分类: 通信 广播 通信设备 移动通信设备
【英文标准名称】:CommercialTurfCareEquipment-SafetySpecifications
【原文标准名称】:商业草皮保养设备.安全规范
【标准号】:ANSI/OPEIB71.4-1990
【标准状态】:作废
【国别】:美国
【发布日期】:1990
【实施或试行日期】:
【发布单位】:美国国家标准学会(ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:安全要求;草皮维护
【英文主题词】:safetyrequirements;turfmaintenance
【摘要】:Thesafetyspecificationsinthisstandardapplytopoweredwalk-behind,towed,andride-onmachinesintendedformarketingascommercialturfcareequipmentandthatarecustomarilyusedbyhiredoperators.Equipmentcoveredmayconsistoftwoormorecomponentsthatarefunctionallyconnectedandmaybeproducedbydifferentmanufacturers.Eachfunctionalcomponentshallconformtoeachclauseofthisstandardasitlogicallyapplies.Thesespecificationsarenotintendedtoapplyto-turfcareequipmentthatisdesignedprimarilyforpersonaluse,consumption,orenjoymentofaconsumerinoraroundapermanentortemporaryhouseholdorresidence;-equipmentthatisdesignedprimarilyforagriculturalpurposes;-equipmentthatisdesignedprimarilyforcuttinggrassandothergrowthonhighwaysandisdesignedforoperationwithtractorshavingatleast20HP.
【中国标准分类号】:Q87
【国际标准分类号】:65_060_70;13_100
【页数】:
【正文语种】:英语