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BS 3680-5:1992

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Measurement of liquid flow in open channels Slope area method of estimation

Available format(s)

Hardcopy , PDF

Superseded date

11-20-2018

Language(s)

English

Published date

10-15-1992

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Superseded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

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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US$166.30
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