BS 3680-4B:1986
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Methods of measurement of liquid flow in open channels. Weirs and flumes Triangular profile weirs
Hardcopy , PDF
31-03-2008
English
31-01-1986
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National foreword
Committees responsible
Method
1. Scope and field of application
2. References
3. Definitions and symbols
4. Units of measurement
5. Installation
6. Maintenance
7. Measurement of head
8. Specification for the standard weir
9. Discharge characteristics
10. Uncertainties in flow measurement
11. Examples
Annex
Symbols
Table
1. Values of X"c, as a percentage, in terms of Cv and f
Figures
1. Triangular profile weir
2. Coefficient of approach velocity, Cv
3. Drowned flow - Cvf in terms of hp/h and
2/3 square root 2/3 Cd bh/A
Methods for steady flow conditions. Examples are given on the computation of flow rate and associated uncertainty for modular and drowned flow conditions.
| Committee |
CPI/113
|
| DevelopmentNote |
Supersedes 80/31246 DC and BS 3680-4B(1969) (07/2005)
|
| DocumentType |
Standard
|
| Pages |
22
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
| ISO 4373:2008 | Hydrometry Water level measuring devices |
| BS 3680-3A:1980 | Measurement of liquid flow in open channels. Stream flow measurement Velocity-area methods |
| BS 3680-1:1983 | Measurement of liquid flow in open channels. Glossary of terms |
| BS 5844:1980 | Methods of measurement of fluid flow: estimation of uncertainty of a flow-rate measurement |
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