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AS 4747.2-2013
[Pending Revision]Meters for non-urban water supply, Part 2: Technical requirements for closed conduit meters fully charged
Sets out requirements for water meters for use in non-urban applications. It primarily covers metering for irrigation water; however, it is intended that it be used for non-urban water applications other than applications covered by AS 3565.1.
Published: 21/02/2013
Pages: 30
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope and general
1.1 Scope
1.2 Application
1.3 Normative references
1.4 Definitions
1.5 Preferred units
2 Materials
2.1 General
2.2 Resistance to corrosion
2.2.1 General
2.2.2 Corrosion-resistant materials
2.3 Material durability tests
2.3.1 Ultraviolet exposure test
2.3.2 Polymer-bodied meter durability test
3 Design
3.1 Dimensions and connections
3.1.1 Dimensions
3.1.2 Threaded end connections
3.1.3 Flanged end connections
3.1.4 Other end connections
3.1.5 Other connections
3.2 Output
3.2.1 General
3.2.2 Flow rate
3.2.2.1 Mechanical meter
3.2.2.2 Electronic meter with mains power
3.2.2.3 Electronic meter with low-power supply
3.2.3 Flow volume
3.2.3.1 Mechanical meter
3.2.3.2 Electronic meter with mains power
3.2.3.3 Electronic meter with low-power supply
3.2.4 Data output
3.3 Electronic storage
3.4 Frequency of measurement
4 Performance requirements
4.1 General
4.2 Pathways for compliance with this standard
4.2.1 General
4.2.2 Pathway for self-contained unit
4.2.2.1 Where pattern approval testing is possible
4.2.2.2 Where pattern approval testing is not possible
4.2.3 Pathway for modular metering systems
4.2.3.1 Where pattern approval testing is possible
4.2.3.2 Where pattern approval testing is not possible
4.3 Measurement of performance
4.3.1 Meter performance
4.3.1.1 General
4.3.1.2 Direct volumetric comparison
4.3.1.3 Indirect volumetric calculation
4.3.2 Performance requirements for direct volumetric comparisons
4.3.2.1 Laboratory testing
4.3.2.2 In situ testing
4.3.2.3 Laboratory in-service testing
4.3.3 Performance requirements for the indirect calculation of volume
4.4 Torque resistance of threaded end connections
5 Product documentation
Appendix A
A1 General
A2 Information to be supplied by the purchaser
A3 Information to be provided by the manufacturer
A4 Certificates of compliance
Appendix B
B1 Scope
B2 Relevance
B3 Product certification
B4 Sampling
B4.1 General
B4.2 Pattern approval
Appendix C
Appendix D
D1 Nature of errors
D2 Explanation of terms
D2.1 Uncertainty of measurement
D2.2 What is uncertainty of measurement?
D2.3 Error versus uncertainty
D2.4 True value and conventional true value
D2.5 Error and uncertainty in non-urban water metering
D2.5.1 Making the measurement
D2.5.2 Determination of true value
D2.5.3 Error or uncertainty
D2.5.4 Example of uncertainty calculation
Appendix E
E1 Scope
E2 Principle
E3 Apparatus
E4 Procedure
E5 Report
Appendix F
F1 Scope
F2 Initial accuracy test
F3 Cyclic temperature test
F3.1 General
F3.2 Apparatus
F3.3 Procedure
F3.4 Acceptance criteria and report
F4 Cyclic pressure test
F4.1 General
F4.2 Apparatus
F4.3 Procedure
F4.3.1 Test cycle
F4.3.2 Test procedure
F4.4 Acceptance criteria and report
F5 Final accuracy test
F5.1 General
F6 Acceptance criteria
F7 Report
Bibliography
Cited references in this standard
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