ISO 4374:1990

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

Publication date: Mar 15, 1990

General information

Current stage: 90.20 Effective date: Jul 15, 2026

Originator: ISO

Owner: ISO/TC 113/SC 2

Type: International Standard

ICS: 17.120.20

Languages: French English

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Status: Published

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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WITHDRAWN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

National adoptions

SSH ISO 4374:1990

DPS

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

60.60 Standard published

DPS/KT 12 more

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