ISO 4360:2020-ed.4.0

Anotace textu normy ISO 4360:2020-ed.4.0 :

Description / Abstract: This document specifies methods for the measurement of the flow of water in open channels under steady flow conditions using triangular profile weirs. The flow conditions considered are steady flows which are uniquely dependent on the upstream head and non-modular (drowned) flows which depend on downstream as well as upstream levels.