BS 3680-3A:1980
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
Measurement of liquid flow in open channels. Stream flow measurement Velocity-area methods
Hardcopy , PDF
English
30-04-1980
15-10-1997
National foreword
Cooperating organizations
Methods
1 Scope and field of application
2 References
3 Terminology
4 Units of measurement
5 Principle of the methods of measurement
6 Selection and demarcation of site
7 Measurement of cross-sectional area
8 Measurement of velocity
9 Computation of discharge
10 Uncertainties in flow measurement
Annexes
A Methods of correcting for sag, pull, slope and
temperature in measuring the width of cross-section
by tape or wire
B Methods of measurement across the cross-section
C Correction for wetted length of wire when measuring
depths with the wire not normal to the surface
D Correction for drift
E Uncertainty of a velocity area measurement
Tables
1 Air line correction
2 Wet-line correction
Figures
1 Computation of discharge from current-meter
measurement - Depth-velocity integration method
2 Computation of discharge from current-meter
measurement - Area-velocity integration method
3 Computation of discharge from float measurement
4 Computation of discharge and mean water-level for
variations of water-level
5 Measurement of cross-section - Angular method
6 Measurement of cross-section - Projection from
opposite bank
7 Measurement of cross-section - Projection from one
bank
8 Measurement of cross-section - Pivot-point method
Methods for determining the velocity and cross-sectional area of water flowing in open channels (with or without ice cover) and computing the discharge. It covers methods of employing current meters and floats to measure the velocities.
| Committee |
CPI/113
|
| DevelopmentNote |
BS DRAFT 93/210839 DC
|
| DocumentType |
Standard
|
| Pages |
28
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
| Standards | Relationship |
| ISO 748:2007 | Identical |
| UNE-EN 61754-8:1997 | Identical |
| BS 3680-2A:1964 | Measurement of liquid flow in open channels. Dilution methods Constant rate injection |
| BS 3680-3E:1986 | Measurement of liquid flow in open channels. Stream flow measurement Measurement of discharge by the ultrasonic (acoustic) method |
| BS 3680-3J:1989 | Measurement of liquid flow in open channels. Stream flow measurement Guide to the measurement of discharge using three verticals |
| BS 3680-4E:1980 | Methods of measurement of liquid flow in open channels. Weirs and flumes Free overall weirs of finite crest width (rectangular broad-crested weirs) |
| BS 3680-6:1995 | Measurement of liquid flow in open channels Guide to measurement of flow in tidal channels |
| BS EN 60041:1995 | Field acceptance tests to determine the hydraulic performance of hydraulic turbines, storage pumps and pump-turbines |
| BS 599:1966 | Methods of testing pumps |
| BS 3680-8A:1973 | Measurement of liquid flow in open channels. Measuring instruments and equipment Current meters incorporating a rotating element |
| BS 3680-3B:1997 | Measurement of liquid flow in open channels. Stream flow measurement Guide for the establishment and operation of a gauging station |
| BS 3680-4B:1986 | Methods of measurement of liquid flow in open channels. Weirs and flumes Triangular profile weirs |
| BS 3680-4E:1990 | Methods of measurement of liquid flow in open channels. Weirs and flumes Rectangular broad-crested weirs |
| BS 4485-2:1988 | Water cooling towers Methods for performance testing |
| BS 3680-8A:1989 | Measurement of liquid flow in open channels. Measuring instruments and equipment Current meters incorporating a rotating element |
| BS 3680-3E:1993 | Measurement of liquid flow in open channels. Stream flow measurement Measurement of discharge by the ultrasonic (acoustic) method |
| BS 3680-10B:1980 | Measurement of liquid flow in open channels. Sediment transport Measurement of suspended sediment |
| BS 3680-7:1971 | Measurement of liquid flow in open channels The measurement of liquid level (stage) |
| BS 3680-6:1973 | Measurement of liquid flow in open channels Measurement of flow in tidal channels |
| BS 6068-6.6:1991 | Water quality. Sampling Guidance on sampling of rivers and streams |
| BS 3680-3F:1986 | Measurement of liquid flow in open channels. Stream flow measurement Collection and processing of data for determination of errors in measurement |
| BS 3680-3D:1980 | Measurement of liquid flow in open channels. Stream flow measurement Moving-boat method |
| BS 3680-5:1970 | Methods of measurement of liquid flow in open channels. Slope area method of estimation |
| BS 3680-8B:1983 | Measurement of liquid flow in open channels. Measuring instruments and equipment Recommendations for direct depth sounding and suspension equipment |
| BS 5844:1980 | Methods of measurement of fluid flow: estimation of uncertainty of a flow-rate measurement |
| ISO 5168:2005 | Measurement of fluid flow — Procedures for the evaluation of uncertainties |
| ISO 4373:2008 | Hydrometry — Water level measuring devices |
| ISO 3454:2008 | Hydrometry — Direct depth sounding and suspension equipment |
| ISO 4366:2007 | Hydrometry — Echo sounders for water depth measurements |
| ISO 1088:2007 | Hydrometry — Velocity-area methods using current-meters — Collection and processing of data for determination of uncertainties in flow measurement |
| ISO 1100:1973 | Withdrawal of ISO 1100-1973 |
| ISO 2537:2007 | Hydrometry — Rotating-element current-meters |
| ISO 772:1996 | Hydrometric determinations — Vocabulary and symbols |
| ISO 3455:2007 | Hydrometry — Calibration of current-meters in straight open tanks |
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