规定了用于直接测量明渠水流深度和流速（包括沉积物样品采集）的测深和悬挂设备的功能要求。它适用于通过直接法测量水深的设备，以及在测量点悬挂测量或采样仪器（例如，流速计或沉积物采样器）的设备。它不适用于回声探测等间接方法。本标准与ISO 3454:1983相同，并根据ISO 3454:1983复制。

Specifies functional requirements of sounding and suspension equipment used in the direct measurement of depth and velocity of flow in open channels, including the collection of sediment samples. It applies to equipment used for sounding of water depth by the direct method and to equipment for suspending measuring or sampling instruments (for example, current meter or sediment sampler) at the point of measurement. It does not apply to indirect methods such as echo sounding. It is identical with and has been reproduced from ISO 3454:1983.