Mesure de débit des liquides dans les canaux découverts au moyen de déversoirs et de canaux jaugeurs — Déversoirs carénés à seuil à profil triangulaire

Specifies methods for the measurement of the flow of water in open channels under steady flow conditions. The flow conditions considered are free flow, which is dependent on the upstream head only, and drowned flow, which depends on both upstream and downstream water levels.