ATS 4747.8-2010

1 - ATS 4747.8-2010 METERS FOR NON-URBAN WATER SUPPLY - IN-SERVICE COMPLIANCE FOR NON-URBAN WATER METERS
4 - PREFACE
5 - CONTENTS
6 - SECTION 1 SCOPE AND GENERAL
6 - 1.1 SCOPE
6 - 1.2 APPLICATION
7 - 1.3 NORMATIVE REFERENCES
7 - 1.4 DEFINITIONS
8 - 1.5 PREFERRED UNITS
9 - SECTION 2 COMPLIANCE REGIME-METROLOGICAL ASSURANCE FRAMEWORK
9 - 2.1 GENERAL
9 - 2.2 METER SELECTION
9 - 2.3 INSTALLATION
9 - 2.4 VALIDATION (POST INSTALLATION/ONGOING)
9 - 2.4.1 Validation (post installation)
10 - 2.4.2 Post-installation validation of modular metering systems
10 - 2.4.3 Validation (ongoing)
11 - 2.5 IN SITU VOLUMETRIC MEASUREMENT
11 - 2.6 REVERIFICATION
11 - 2.6.1 General
12 - 2.7 TESTING OF METERS FOR PURPOSES OTHER THAN REVERIFICATION
12 - 2.8 MAINTENANCE
12 - 2.8.1 General
12 - 2.8.2 Types of maintenance
13 - 2.8.3 Maintenance plan
14 - APPENDIX A - METROLOGICAL ASSURANCE FRAMEWORK
14 - A1 GENERAL
18 - APPENDIX B - EXAMPLE OF A VALIDATION FORM
20 - APPENDIX C - MAINTENANCE COMPETENCIES AND ACTIVITIES
20 - C1 GENERAL
21 - APPENDIX D - EXAMPLE OF METER PREVENTATIVE MAINTENANCE SCHEDULES
22 - APPENDIX E - IN SITU VOLUMETRIC MEASUREMENT
22 - E1 GENERAL
22 - E2 GENERAL GUIDANCE ON IN SITU VOLUMETRIC MEASUREMENT
22 - E3 GUIDANCE ON THE USE OF THE PUMP-AROUND TECHNIQUE
22 - E3.1 General
22 - E3.2 Site selection
23 - E4 ROLES AND RESPONSIBILITIES
23 - E4.1 General
23 - E4.2 Role of water service provider
24 - E4.3 Role of private testing contractor
24 - E5 TEST SET-UP
24 - E6 TEST PROCEDURE
24 - E6.1 General
25 - E6.2 Validation of site
25 - E6.3 Site preparation
25 - E6.4 Notification of testing
25 - E6.5 Testing
26 - E6.6 Time synchronization
26 - E6.7 Reporting
26 - E6.8 Site re-instatement
26 - E7 INTERPRETATION OF RESULTS
26 - E7.1 Tests at different flow rates at the same outlet
26 - E7.2 Uncertainty elements in data collected
26 - E7.3 Guidance on the interpretation of uncertainty in a measurement result

Sets out the requirements for the implementation of a framework involving accredited personnel, initial and on-going validation of installations and maintenance to provide metrological assurance of in-service, non-urban water meters.

This Australian Technical Specification specifies requirements for the metrological assurance of non-urban water meters used in full flowing pipes, open channels, and pipes deliberately flowing partially full, and specifies the general technical requirements of a system that governs in-service operation of meters.Compliance with this Australian Technical Specification will ensure ongoing obligations for meter operations are met in accordance with the ‘National Framework for Non-urban Water Metering Policy Paper’ (the Policy paper).NOTES:1 This Australian Technical Specification should be read in conjunction with National Framework for Non-urban Water Metering Policy Paper.2 The policy applies to meters (including measuring systems, devices and their component parts) owned by entitlement holders, water service providers and jurisdictional governments and used for trade and/or related resource management activities in a non-urban setting.The policy paper has been developed to ensure adequate rigour during meter establishment and operational phases to achieve an acceptable level of confidence in meter performance and accuracy, such that a meter operates within the maximum permissible limits of measurement error (+_5%) allowable under in situ conditions.This Australian Technical specification does not seek to repeat requirements outlined in the policy paper but provides specific guidance on the following areas:(a) Meter selection and initial verification.(b) Installation.(c) Validation (post installation/ongoing).(d) Reverification.(e) Maintenance.

First published as ATS 4747.8 2010.