ISO 4371:1984
Measurement of liquid flow in open channels by weirs and flumes; End depth method for estimation of flow in non-rectangular channels with a free overfall (approximate method)

Standard No.

ISO 4371:1984

Release Date

1984

Published By

International Organization for Standardization (ISO)

Latest

ISO 4371:1984

Scope

Specifies a method for the estimation of subcritical flow of clear water in smooth, essentially horizontal, straight open channels with a vertical drop and discharging freely. Gentle positive slopes not greater than 1 in 2000 are admissible. Covers channels with the following types of cross-section, the nappe being confined: a) trapezoidal; b) triangular; c) parabolic; d) circular.

ISO 4371:1984 history

• 1984 ISO 4371:1984 Measurement of liquid flow in open channels by weirs and flumes; End depth method for estimation of flow in non-rectangular channels with a free overfall (approximate method)