ISO 1438:2017Published

Hydrometry — Open channel flow measurement using thin-plate weirs

Hydrométrie — Mesure de débit dans les canaux à écoulement à surface libre au moyen de déversoirs en mince paroi

Abstract / scope

ISO 1438:2017 defines the requirements for the use of rectangular and triangular (V-notch) thin-plate weirs for the measurement of flow of clear water in open channels under free flow conditions. It includes the requirements for the use of full-width rectangular thin-plate weirs in submerged (drowned) flow conditions.

Life cycle

Replaces

ISO 1438:2008WithdrawnHydrometry — Open channel flow measurement using thin-plate weirsInternational Standard · Published 2 Apr 2008 · ISO/TC 113/SC 2 ISO 1438:2008/Cor 1:2008WithdrawnHydrometry — Open channel flow measurement using thin-plate weirs — Technical Corrigendum 1International Standard · Published 10 Sep 2008 · ISO/TC 113/SC 2