Methods of evaluating the performance of pressure and differential pressure transmitters for use in industrial-process control systems
工业过程控制系统用压力和差压变送器性能的评定方法
1990-01-01
GB/T 28474.1-2012
工业过程测量和控制系统用压力/差压变送器 第1部分:通用技术条件
Pressure/Differential-pressure transmitters for use in industrial-process measure and control systems - Part 1: General specification
2012-06-29
GB/T 28474.2-2012
工业过程测量和控制系统用压力/差压变送器 第2部分：性能评定方法
Pressure/Differential-pressure transmitters for use in industrial-process measure and control systems - Part 2: Methods of evaluating the performance