ISO 1438:2017

Hydrometry — Open channel flow measurement using thin-plate weirs

Publication date: May 2, 2017

General information

Current stage: 90.93 Effective date: Oct 11, 2022

Originator: ISO

Owner: ISO/TC 113/SC 2

Type: International Standard

ICS: 17.120.20

Languages: English French

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Status: 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

Revises
ISO 1438:2008

Revises
ISO 1438:2008/Cor 1:2008

NOW

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

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