ISO 9123:2001
Measurement of liquid flow in open channels — Stage-fall-discharge relationships
| Get this standard | Prices exclude GST | |
|---|---|---|
| PDF ( Single user document) |
$118.26 NZD
|
|
| HardCopy |
$152.17 NZD
|
|
| Networkable PDF |
Price varies
|
Measurement of liquid flow in open channels— Stage-fall-discharge relationships
Contents Page
Foreword
Measurement of liquid flow in open channels— Stage-fall- discharge relationships
1 Scope
2 Normative references
3 Terms and definitions
4 Units of measurement
5 General considerations
5.1 Importance of backwater
5.2 Backwater conditions
5.3 Gauging requirements
5.4 Types of stage-fall-discharge relationships
5.4.1 Under conditions of variable backwater, the fall as measured between the reference gauge...
5.4.2 The constant-fall method works best when backwater is always present at all gauge height...
5.4.3 The unit-fall method is the simplest and requires the least amount of data for calibrati...
5.4.4 Variable-fall methods are the most complex and require the most data for calibration. Th...
6 Unit-fall method
6.1 General
6.2 Method of analysis
6.3 Computation of discharge
6.4 Example of unit-fall method
7 Constant-fall method
7.1 General
7.2 Method of analysis
7.3 Computation of discharge
7.4 Example of constant-fall method
8 Variable-fall method
8.1 General
8.2 Normal-fall method
8.3 Limiting-fall method
8.3.1 General
8.3.2 Method of analysis
8.3.3 Computation of discharge
8.3.4 Example of limiting-fall method
9 Rating curves and tables
10 Method of computation
11 Periodic checking of stage-fall-discharge ratings
12 Extrapolations
13 Uncertainties
Keep me up-to-date
Sign up to receive updates when there are changes to this standard
Related Information
Similar Standards
-
BS 3680-10B:1980
Measurement of liquid flow in open channels. Sediment transport, Measurement of suspended sediment
-
BS 3680-10E:1993
Measurement of liquid flow in open channels. Sediment transport, Sampling and analysis of gravel bed material
-
BS 3680-2A:1995
Measurement of liquid flow in open channels. Dilution methods, General
-
BS 3680-2C:1993
Measurement of liquid flow in open channels. Dilution methods, Methods of measurement using chemical tracers
Measurement of liquid flow in open channels— Stage-fall-discharge relationships
Contents Page
Foreword
Measurement of liquid flow in open channels— Stage-fall- discharge relationships
1 Scope
2 Normative references
3 Terms and definitions
4 Units of measurement
5 General considerations
5.1 Importance of backwater
5.2 Backwater conditions
5.3 Gauging requirements
5.4 Types of stage-fall-discharge relationships
5.4.1 Under conditions of variable backwater, the fall as measured between the reference gauge...
5.4.2 The constant-fall method works best when backwater is always present at all gauge height...
5.4.3 The unit-fall method is the simplest and requires the least amount of data for calibrati...
5.4.4 Variable-fall methods are the most complex and require the most data for calibration. Th...
6 Unit-fall method
6.1 General
6.2 Method of analysis
6.3 Computation of discharge
6.4 Example of unit-fall method
7 Constant-fall method
7.1 General
7.2 Method of analysis
7.3 Computation of discharge
7.4 Example of constant-fall method
8 Variable-fall method
8.1 General
8.2 Normal-fall method
8.3 Limiting-fall method
8.3.1 General
8.3.2 Method of analysis
8.3.3 Computation of discharge
8.3.4 Example of limiting-fall method
9 Rating curves and tables
10 Method of computation
11 Periodic checking of stage-fall-discharge ratings
12 Extrapolations
13 Uncertainties