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ISO 4374:1990

Liquid flow measurement in open channels — Round-nose horizontal broad-crested weirs

Mar 15, 1990

General information

90.20     Jul 15, 2026

ISO

ISO/TC 113/SC 2

International Standard

17.120.20  

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Scope

Deals with the measurement of flow in rivers and artificial channels. The flow conditions considered are limited to steady flows which are uniquely dependent on the upstream head. Drowned flows, which depend on downstream as well as upstream levels, are not covered. Cancels and replaces the first edition (ISO 4374 :1982), of which it constitutes a technical revision.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 4374:1982

NOW

PUBLISHED
ISO 4374:1990
90.20 Standard under periodical review
Jul 15, 2026

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