Methods for measurement of fluid flow in closed conduits, using tracers. Measurement of gas flow-Transit time method using radioactive tracers
使用示踪剂测量封闭管道中流体流量的方法 气体流量的测量 放射性示踪渡越时间法
Gives the principle of the measurement method, required tracer conditions, choice of measuring length of conduit, measurement procedure, selection of tracer, estimation of uncertainties in flowrate measurement and flowrate calculation.Cross References:BS 5857:Section 2.1