BS ISO 4377:2012
Current
The latest, up-to-date edition.
Hydrometric determinations. Flow measurement in open channels using structures. Flat-V weirs
Hardcopy , PDF
English
08-31-2012
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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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