NF Z83-574-1997 蜂窝式数字电信系统(第2段).无线电波传播路径上的多路和多址连接(GSM05.02)
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【英文标准名称】:Digitalcellulartelecommunicationssystem(Phase2).Multiplexingandmultipleaccessontheradiopath(GSM05.02).
【原文标准名称】:蜂窝式数字电信系统(第2段).无线电波传播路径上的多路和多址连接(GSM05.02)
【标准号】:NFZ83-574-1997
【标准状态】:现行
【国别】:法国
【发布日期】:1997-10-01
【实施或试行日期】:1997-10-05
【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】:移动无线电通信系统;无线电电路;多路复用;通信网;无线通信业务;数字的;电气工程;电信;公共的;复接;欧洲的;远程通信;多路传送;通信系统;电信设备;地面流动服务设施;无线电话业务
【英文主题词】:
【摘要】:
【中国标准分类号】:M11
【国际标准分类号】:33_070_50
【页数】:37P;A4
【正文语种】:其他
Product Code:SAE J2197
Title:Hfc-134a (R-134a) Service Hose Fittings for Automotive Air-Conditioning Service Equipment
Issuing Committee:Interior Climate Control Committee
Scope:This SAE Standard covers fittings intended for connecting service hoses, per SAE J2196, from Mobile Air-Conditioning Systems to service equipment such as manifold gauges, vacuum pumps and air-conditioning charging, recovery and recycling equipment (Figure 1).Due to similarities between English and metric thread sizes a single, unique ACME thread fitting is specified. This fitting was recommended by the Compressed Gas Association (CGA), Connection Standards Committee Task Force as one which could be qualified to meet their requirements for use and safety in a time frame consistent with the introduction of R-134a. It was selected because its unique design would reduce the likelihood of cross-treading service hoses on R-12/R-134a refrigerant storage containers and service equipment.The high and low pressure hose in SAE J2196 requires the charge coupling (used to connect service hoses to vehicle access ports) to be an integral part of the hose assembly. To allow removal of the hose from the coupling for hose replacement only, a two-piece construction with a wrench tight connection is permitted. Specifications covering this fitting are provided.
基本信息
| 标准名称： | 油田生产系统能耗测试和计算方法 |
| 替代情况： | 替代SY/T 5264-2006 |
| 发布部门： | 国家能源局 |
| 发布日期： | 2012-08-23 |
| 实施日期： | 2012-12-01 |
| 首发日期： | |
| 作废日期： | |
| 出版社： | 石油工业出版社 |
| 出版日期： | 2012-12-01 |
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所属分类： 医药 卫生 劳动保护 医药 卫生 劳动保护综合 医学 医药卫生技术 医学科学和保健装置综合
