ISO 6416:2004描述了在河流，开放通道或封闭管道中连续测量排放的超声波（运输时间）测量站的建立和运行。它还描述了基于该方法的基本原则，相关仪器的操作和性能以及调试程序。 它限于超声脉冲技术的传播时间，并不适用于利用多普勒频移或相关或水平对流技术的系统。 ISO 6416:2004不适用于冰河测量

ISO 6416:2004 describes the establishment and operation of an ultrasonic (transit-time) gauging station for the continuous measurement of discharge in a river, an open channel or a closed conduit. It also describes the basic principles on which the method is based, the operation and performance of associated instrumentation and procedures for commissioning. It is limited to the transit time of ultrasonic pulses technique, and is not applicable to systems that make use of the Doppler shift or correlation orlevel-to-flow techniques. ISO 6416:2004 is not applicable to measurement in rivers with ice.