Measurement of liquid flow in open channels. Measuring instruments and equipment-Method of specifying the performance of hydrometric equipment
明渠中液体流量的测量 测量仪器和设备 规定水文测量设备性能的方法
Applies to all equipment used for hydrological measurement, except that for the determination of water quality.Cross References:BS 3680:Part 1ISO 31-1ISO 31-3