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AS 2360.8.1-2007
[Current]Hydrometry — Measurement of free surface flow in closed conduits, Part 8.1: Methods
This standard provides a synopsis of the methods of flow gauging that can be deployed in closed conduits flowing part full, i.e. with a free open water surface.
Published: 06/08/2007
Pages: 31
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope
2 Normative references
3 Terms and definitions
4 Characteristics of a closed conduit system
4.1 Physical structure
4.2 Construction
4.2.1 Material
4.2.2 Cross-sectional shape
4.3 Flow conditions
4.4 Environment
4.4.1 Within the conduit
4.4.2 External environment
5 Selection of method
5.1 General
5.2 Factors
5.2.1 Frequency and duration of measurement
5.2.2 Physical conditions
5.2.3 Site surveys
6 Methods of measurement
6.1 Volumetric methods
6.1.1 Description
6.1.2 Attributes and limitations
6.1.3 Equipment
6.1.4 Application
6.1.5 Uncertainties
6.2 Tracer and dilution method
6.2.1 Basic principles
6.2.2 Attributes and limitations
6.2.3 Equipment
6.2.4 Application
6.2.5 Uncertainties
6.3 Flow measurement structures
6.3.1 Basic principles
6.3.2 The use of flow measurement structures in closed conduits
6.3.3 Special structures not covered by any specific International Standard
6.3.4 Conventional structures
6.3.5 Equipment
6.3.6 Uncertainties
6.4 Ultrasonic Doppler
6.4.1 Basic principles
6.4.2 Attributes and limitations
6.4.3 Equipment
6.4.4 Applications
6.4.5 Uncertainties
6.5 ‘Transit time’ ultrasonic flow meters
6.5.1 Basic principles
6.5.2 Attributes and limitations
6.5.3 Equipment
6.5.4 Applications
6.5.5 Uncertainties
6.6 Electromagnetic method
6.6.1 Basic principles
6.6.1.1 General
6.6.1.2 Local velocity sensor
6.6.1.3 Full width sensor
6.6.1.4 Spool piece sensors
6.6.2 Attributes and limitations
6.6.3 Equipment
6.6.4 Application
6.6.5 Uncertainties
6.7 Slope-area method
6.7.1 Basic principles
6.7.2 Attributes and limitations
6.7.3 Equipment
6.7.4 Applications
6.7.5 Uncertainties
6.8 Non-contact methods
6.8.1 Basic principles
6.8.1.1 General
6.8.1.2 Radar
6.8.1.3 Optical
6.8.2 Attributes and limitations
6.8.3 Equipment
6.8.4 Application
6.8.5 Uncertainties
6.9 Spot flow measurements, evaluation and verification
7 Final selection of method
Annex A
Bibliography
Cited references in this standard
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