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BS ISO 4377:2012

Current

Current

The latest, up-to-date edition.

Hydrometric determinations. Flow measurement in open channels using structures. Flat-V weirs

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

31-08-2012

€322.53
Excluding VAT

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Characteristics of flat-V weirs
6 Installation
7 Maintenance
8 Measurement of head(s)
9 Discharge relationships
10 Computation of discharge
11 Uncertainties in flow determination
12 Examples
Annex A (normative) - Velocity distribution
Annex B (informative) - Introduction to measurement
        uncertainty
Annex C (informative) - Performance guide for hydrometric
        equipment for use in technical standards
Bibliography

Specifies the methods of measurement of flow in rivers and artificial channels under steady or slowly varying conditions using flat-V weirs.

Committee
CPI/113
DevelopmentNote
Supersedes BS 3680-4G(1999) (11/2002) Supersedes 11/30215957 DC. (08/2012)
DocumentType
Standard
Pages
70
PublisherName
British Standards Institution
Status
Current
Supersedes

This International Standard describes the methods of measurement of flow in rivers and artificial channels under steady or slowly varying conditions using flat-V weirs (see Figure1).

AnnexA gives guidance on acceptable velocity distribution.

Standards Relationship
ISO 4377:2012 Identical

ISO/IEC 17025:2005 General requirements for the competence of testing and calibration laboratories
ISO 1100-2:2010 Hydrometry Measurement of liquid flow in open channels Part 2: Determination of the stage-discharge relationship
ISO 4373:2008 Hydrometry Water level measuring devices
ISO 26906:2015 Hydrometry Fishpasses at flow measurement structures
ISO/TS 25377:2007 Hydrometric uncertainty guidance (HUG)
ISO 772:1996 Hydrometric determinations — Vocabulary and symbols
ISO/IEC Guide 98-3:2008 Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)

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