ISO 1438:2008
Hydrometry - Open channel flow measurement using thin-plate weirs

Standard No.

ISO 1438:2008

Release Date

2008

Published By

International Organization for Standardization (ISO)

Status

Be replaced

Replace By

ISO 1438:2008/cor 1:2008

Latest

ISO 1438:2017

Scope

This International Standard defines the requirements for the use of rectangular and triangular (V-notch) thinplate 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.

ISO 1438:2008 Referenced Document

• ISO 772 Hydrometry — Vocabulary and symbols*， 2022-02-28 Update

ISO 1438:2008 history

• 2017 ISO 1438:2017 Hydrometry - Open channel flow measurement using thin-plate weirs
• 2008 ISO 1438:2008/cor 1:2008 Hydrometry - Open channel flow measurement using thin-plate weirs; Technical Corrigendum 1
• 2008 ISO 1438:2008 Hydrometry - Open channel flow measurement using thin-plate weirs
• 1975 ISO 1438:1975 Liquid flow measurement in open channels using thin-plate weirs and Venturi flumes