ISO 6416描述了在河流，开放通道或封闭管道中连续测量排放物的超声波（运输时间）测量站的建立和运行。它还描述了该方法所依据的基本原则，相关仪器的操作和性能以及调试程序。 它限于“超声波脉冲的传播时间”技术，不适用于利用“多普勒频移”或“相关”或“等级到流量”技术的系统。 ISO 6416不适用于冰川河流测量。 注意ISO 6416着重于开放通道流量测量。 IEC 60041涵盖了使用全管道流量测量技术。

ISO 6416 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" or "level-to-flow" techniques. ISO 6416 is not applicable to measurement in rivers with ice. NOTE ISO 6416 focuses on open channel flow measurement. IEC 60041 covers the use of the technique for full pipe flow measurement.