管道仪表的天然气抽样处理和调节系统标准规程

标准编号：ASTM D5503-1994(2003)

提出单位：D03.01

起草单位：D03.01

发布日期：1994年

实施日期：10000000

主      题：天然气样品 管道仪表 管道监控装置 调节系统 规程 监控 天然气 处理 

中国标准分类号：Q82

摘      要：A well-designed sample-handling and conditioning system is essential to the accuracy and reliability of pipeline instruments. Approximately 70 % of the problems encountered are associated with the sampling system. 1.1 This practice covers sample-handling and conditioning systems for typical pipeline monitoring instrumentation (gas chromatographs, moisture analyzers, and so forth). The selection of the sample-handling and conditioning system depends upon the operating conditions and stream composition. 1.2 This practice is intended for single-phase mixtures that vary in composition. A representative sample cannot be obtained from a two-phase stream. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 1.4 The values stated in SI units are to be regarded as standard. The values stated in English units are for information only.