Hydrometry. Liquid flow measurement using end depth method in channels with a free overfall Ingestion-build-71203 The user of this standard

The user of this standard should select the lowest class necessary for the conditions of the intended use

and routine test phases

and what measurement criteria should be used

This International Standard specifies a method for the calculation of transmittance based upon diffuse reflectance measurements

Hydrometry. Liquid flow measurement using end depth method in channels with a free overfall Ingestion-build-71203 The user of this standard1 Scope This document specifies a method for the estimation of the sub critical flow of clear water in a smooth, essentially horizontal channel (or a gently sloping channel), abruptly discontinued at bottom by a hydraulic structure, with a vertical drop and discharging freely. Such an overfall forms a control section and offers a means for the estimation of flow using the end depth measurement method. A wide variety of channel cross sections with