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ISO 1438:2017

Hydrometry — Open channel flow measurement using thin-plate weirs ISO 1438:2017

Publication date:   May 2, 2017

General information

90.93 Standard confirmed   Oct 11, 2022

ISO

ISO/TC 113/SC 2 Flow measurement structures

International Standard

17.120.20   Flow in open channels

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Published

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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

PREVIOUSLY

WITHDRAWN
ISO 1438:2008

WITHDRAWN
ISO 1438:2008/Cor 1:2008

NOW

PUBLISHED
ISO 1438:2017
90.93 Standard confirmed
Oct 11, 2022