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BS ISO 14139:2000

Current
Current

The latest, up-to-date edition.

Hydrometric determinations. Flow measurements in open channels using structures. Compound gauging structures Compound gauging structures
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

15-08-2000

Specifies methods of measurement of flow in rivers or channels using any combination of standard weirs or flumes.

This International Standard specifies the methods of measurement of flow in rivers and artificial channels, using any combination of standard weirs and/or flumes in a compound structure. For guidance on the selection of weirs and/or flumes, refer to ISO8368. All structures can be operated in the modular flow range, but only a limited number of structures can be used in the drowned (non-modular) flow range (see clause4). Compound weirs improve the quality of discharge measurements at low stages.

The characteristics of velocity distribution are described annexA.

Structures standardized for operation in the drowned (non-modular) flow range and the method of computation of flow are described in annexB.

Methods and examples of flow measurement calculations are given in annexC.

Compound flow-measuring structures without divide piers need in situ or model calibrations and are not covered by this International Standard.

Committee
CPI/113
DevelopmentNote
Supersedes 97/120653 DC and BS 3680-4D(1989). (05/2005)
DocumentType
Standard
Pages
48
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
ISO 14139:2000 Identical

ISO 8368:1999 Hydrometric determinations Flow measurements in open channels using structures Guidelines for selection of structure
ISO 8333:1985 Liquid flow measurement in open channels by weirs and flumes — V-shaped broad-crested weirs
ISO 9826:1992 Measurement of liquid flow in open channels — Parshall and SANIIRI flumes
ISO 4359:2013 Flow measurement structures — Rectangular, trapezoidal and U-shaped flumes
ISO/TR 5168:1998 Measurement of fluid flow Evaluation of uncertainties
ISO 3846:2008 Hydrometry Open channel flow measurement using rectangular broad-crested weirs
ISO 4377:2012 Hydrometric determinations — Flow measurement in open channels using structures — Flat-V weirs
ISO 9827:1994 Measurement of liquid flow in open channels by weirs and flumes — Streamlined triangular profile weirs
ISO 4374:1990 Liquid flow measurement in open channels Round-nose horizontal broad-crested weirs
ISO 4362:1999 Hydrometric determinations — Flow measurement in open channels using structures — Trapezoidal broad-crested weirs
ISO 772:1996 Hydrometric determinations — Vocabulary and symbols
ISO 4360:2008 Hydrometry Open channel flow measurement using triangular profile weirs

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