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Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by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Superseded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 |
| ISO 748:1979 | Identical |
| UNE-EN 61754-8:1997 | Identical |
A newer version of this standard is available.
View Current Edition
Please Login or Create an Account so you can add users to your Multi user PDF Later.
Important note : All end users must be registered with an Account prior to user licenses being assigned.
Users cannot be edited or removed once added to your Multi user PDF.