【英文标准名称】:RadioEquipmentandSystems(RES)-Trans-EuropeanTrunkedRadio(TETRA);VoiceplusData(V+D)-Part10:Supplementaryservicesstage1;Part10-24:Callretention;EnglishversionETS300392-10-24:1996
【原文标准名称】:无线电设备和系统(RES).横贯欧洲的主干线广播(TETRA).语言和数据(V+D).第10部分:补充业务等级1.第10-23部分:电话呼叫存储
【标准号】:DINETS300392-10-24-1997
【标准状态】:作废
【国别】:德国
【发布日期】:1997-09
【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】:无线电装置;数据传送;无线电设备;呼叫;无线电广播网;语音传输;无线通信业务;电信;电信;跨欧洲干线广播;补充业务
【英文主题词】:datatransfer;radionetworks;telecommunications;telecommunication;speechtransmission;tetra;supplementaryservices;radioequipment;calls;wirelesscommunicationservices;radiosystems
【摘要】:
【中国标准分类号】:M70
【国际标准分类号】:33_060_60
【页数】:16P;A4
【正文语种】:德语


Product Code:SAE J1616
Title:Recommended Practice for Compressed Natural Gas Vehicle Fuel
Issuing Committee:Fuels And Lubricants Tc 7 Fuels
Scope:Compressed Natural Gas (CNG) is a practical automotive fuel, with advantages and disadvantages when compared to gasoline. it has a good octane quality, is clean burning, easy to meter, and generally normally compressed form 20 690 to 24 820 kPa (3000 to 3600 psig) to increase its energy density thereby reducing its on-board vehicle storage volume for a given range and payload.the properties of natural gas are influenced by (1) the processing of natural gas by the production and transmission companies and (2) the regional gas supply, storage, and demand balancing done by distributuion companies often in concert with pipeline companies to maintain uninterrupted service throughout the year, e.g., peakshaving the propane-air (see U.S. Bureau of Mines Publication 503).This document presents the more important physical and chemical characteristics of compressed natural gas vehicle fuel and describes pertinent test methods for defining or evaluating these properties. In order for compressed Natural Gas Vehicles (NGVs) to effective provide satisfactory and safe operation for users, there is a need to address specific issues relative to the use of natural gas as a vehicle fuel. The two primary areas relate to 1) compressed storage of natural gas and 2) vehicle fuel system and engine performance issues. These provisions have been derived through a joint effort of the SAE TC-7 Natural Gas Vehicle Task Force and the Technology Committee on the Natural Gas Vehicle Coalition.