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BS 3680-3C:1983

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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. Stream flow measurement Methods for determination of the stage-discharge relation
Available format(s)

Hardcopy , PDF

Superseded date

15-07-1998

Language(s)

English

Published date

30-06-1983

National foreword
Cooperating organizations
1 Scope and field of application
2 References
3 Definitions and symbols
4 Units of measurement
5 Principles of the stage-discharge relation
6 Calibration of a gauging station
7 Methods of testing stage-discharge curves
8 Uncertainty in the stage-discharge relation and in a
    continuous measurement of discharge
Annexes
A Stage-discharge curve
B Hysteresis in the stage-discharge relation
C Twin gauge station fall-discharge method
D Extrapolation of stage-discharge relation
E Correction for discharge in unsteady flow
Tables
1 Typical manual computation of the stage-discharge
    relation by the method of least squares
2 Tabulation of calculation to determine points for
    plotting stage-discharge curve and constructing
    rating table (manual)
3 Tabulated values required to calculate Se and Smr
4 Typical computation for the uncertainty in the daily
    mean discharge using hourly values of discharge
5 Student's "t" test of check gauging for bias
6 Values of Student's "t" at the 95 % confidence level
Figures
1 Computation of discharge and mean water-level for
    variations of water-level
2 Segment of stage-discharge curve
3 Determination of a - Gauge reading for zero
    discharge
4 Testing of stage-discharge curves
5 Relationship Qn = f(z0) for unit fall Hn = 0,300 m
6 Relationship between Q/Qn and H/Hn
7 Relation of stage to adjusted discharge for
    reference fall (0,300 m)
8 Normal-fall method - Simple rating-curve
9 Relation between normal fall and height
10 Measured discharge-fall relation

Specifies methods of determining the stage-discharge relation for a gauging station in both stable and unstable channels, including those subject to ice conditions. Includes an analysis of the uncertainties involved in the preparation and use of the stage-discharge relation.

Committee
CPI/113
DevelopmentNote
BS DRAFT 96/206761 DC REFERS TO A NEW REVISION
DocumentType
Standard
Pages
44
PublisherName
British Standards Institution
Status
Superseded
SupersededBy

Standards Relationship
ISO 1100-2:2010 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 3680-6:1995 Measurement of liquid flow in open channels Guide to measurement of flow in tidal channels
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 3680-5:1992 Measurement of liquid flow in open channels Slope area method of estimation
BS 3680-3E:1993 Measurement of liquid flow in open channels. Stream flow measurement Measurement of discharge by the ultrasonic (acoustic) method
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 7898:1997 Guide to hydrometric data management
BS 3680-5:1970 Methods of measurement of liquid flow in open channels. Slope area method of estimation
BS 7118-1:1990 Measurement of fluid flow: assessment of uncertainty in the calibration and use of flow measurement devices Linear calibration relationships

ISO 748:2007 Hydrometry Measurement of liquid flow in open channels using current-meters or floats
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 555-2:1987 Liquid flow measurement in open channels Dilution methods for the measurement of steady flow Part 2: Integration method
ISO 4369:1979 Measurement of liquid flow in open channels Moving-boat method
ISO 4363:2002 Measurement of liquid flow in open channels Methods for measurement of characteristics of suspended sediment
ISO/TR 7178:1983 Liquid flow measurement in open channels Velocity-area methods Investigation of total error
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 4359:2013 Flow measurement structures — Rectangular, trapezoidal and U-shaped flumes
ISO 1100-1:1996 Measurement of liquid flow in open channels Part 1: Establishment and operation of a gauging station
ISO 3847:1977 Liquid flow measurement in open channels by weirs and flumes — End-depth method for estimation of flow in rectangular channels with a free overfall
ISO 3846:2008 Hydrometry Open channel flow measurement using rectangular broad-crested weirs
ISO 4375:2014 Hydrometry Cableway systems for stream gauging
ISO 4377:2012 Hydrometric determinations — Flow measurement in open channels using structures — Flat-V weirs
ISO 2537:2007 Hydrometry — Rotating-element current-meters
ISO/TR 7066-1:1997 Assessment of uncertainty in calibration and use of flow measurement devices — Part 1: Linear calibration relationships
ISO 772:1996 Hydrometric determinations — Vocabulary and symbols
ISO 3455:2007 Hydrometry Calibration of current-meters in straight open tanks
ISO 4360:2008 Hydrometry Open channel flow measurement using triangular profile weirs

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