研究河流和人工渠道中的流量测量。考虑的流量条件仅限于稳定流量，而稳定流量仅取决于上游水头。淹没流取决于下游和上游水位，不包括在内。取消并替换第一版（ISO 4374:1982），第一版构成技术修订版。

Deals with the measurement of flow in rivers and artificial channels. The flow conditions considered are limited to steady flows which are uniquely dependent on the upstream head. Drowned flows, which depend on downstream as well as upstream levels, are not covered. Cancels and replaces the first edition (ISO 4374 :1982), of which it constitutes a technical revision.