BS ISO 1438:2008 - Page 3

Hydrometry. Open channel flow measurement using thin-plate weirs. | Status: Superseded, Withdrawn

1 Scope This International Standard 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.