GB/T 20728-2006 in English

《GB/T 20728-2006封闭管道中流体流量的测量 科里奥利流量计的选型、安装和使用指南》由TC124（全国工业过程测量控制和自动化标准化技术委员会）归口，TC124SC1（全国工业过程测量控制和自动化标准化技术委员会温度、流量、机械量、物位、显示仪表、执行器和结构装置分会）执行，主管部门为中国机械工业联合会。
本标准规定了测量流体的质量流量、密度、体积流量和其他相关参数的科里奥利流量计的选型、安装、校准、性能和操作的指导原则，以及测定气体质量流量和标准体积流量的方法。

Scope

This standard presents guidelines for the selection, installation, calibration, performance, and operation of Coriolis flow meters for measuring mass flow, density, volume flow, and other related parameters of fluids. This International Standard specifies methods for the determination (using predetermined standard densities) of gas mass flow and standard volume flow. This standard also takes due account of the nature of the measured fluid. The main purpose of a Coriolis flow meter is to measure the mass flow of fluids. But some Coriolis meters also have the ability to measure the density and temperature of the fluid. By measuring these three parameters the volumetric flow of the fluid and other related parameters can be determined. With special considerations, any Coriolis flowmeter can in principle be used to measure gas flow. Special considerations for measuring gas flow are given in Appendix E. This standard is mainly applicable to the measurement of liquids, and may also be applicable to the measurement of gases in some occasions.