BS 3680-5:1992
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Measurement of liquid flow in open channels Slope area method of estimation
Hardcopy , PDF
English
15-10-1992
20-11-2018
Committees responsible
National foreword
1 Scope
2 Normative references
3 Definitions
4 Principle of the method of measurement
5 Selection and demarcation of site
6 Devices for measurement of slope
7 Procedure for installing gauges and making observations
8 Computation of surface slope
9 Cross-sections of the stream
10 Computation of discharge for non-uniform and composite
cross-sections
11 Computation of discharge for uniform cross-sections
12 Uncertainties in flow measurement
Annex A (informative) Approximate values of coefficients n and
c for open channels
Annex B (informative) Bibliography
Table A1 - Coefficients for channels with relatively coarse bed
material and not characterized by bed formation
Table A2 - Coefficients for channels other than those with
coarse bed material
Figure 1 - Composite cross-section of a channel
Figure 2 - Cross-section of a channel
Figure 3 - Longitudinal section of a reach
Method of determining liquid flow from observations of surface slope and cross-sectional area of channel. It is suitable for use under somewhat special conditions when direct measurement of discharge by more accurate methods, such as the velocity-area method, is not possible.
| Committee |
CPI/113
|
| DevelopmentNote |
Supersedes BS 3680-5(1970), 91/23585 DC and 96/210128 DC. (04/2005) Also numbered as ISO 1070 (07/2005) Reviewed and confirmed by BSI, November 2007. (10/2007)
|
| DocumentType |
Standard
|
| Pages |
18
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| ISO 1070:1992/Amd 1:1997 | Identical |
| BS 7898:1997 | Guide to hydrometric data management |
| BS 6068-6.6:1991 | Water quality. Sampling Guidance on sampling of rivers and streams |
| ISO 748:2007 | Hydrometry — Measurement of liquid flow in open channels using current-meters or floats |
| ISO 4373:2008 | Hydrometry — Water level measuring devices |
| BS 5844:1980 | Methods of measurement of fluid flow: estimation of uncertainty of a flow-rate measurement |
| BS 3680-3C:1983 | Measurement of liquid flow in open channels. Stream flow measurement Methods for determination of the stage-discharge relation |
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