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AS 3565.4-2007
[Current]Meters for cold and heated drinking and non-drinking water supplies, Part 4: In-service compliance testing
Specifies requirements for the timely sampling, testing, and assessment of in-service compliance of populations of water meters and individual meters, limited to 20 mm water meters.
Published: 08/03/2007
Pages: 20
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
Foreword
1 Scope
2 Application
3 Referenced documents
4 Definitions
5 Discussion
5.1 Limiting quality inspection by attributes
5.2 Treatment of outliers
6 In-service compliance testing
6.1 General
6.2 Implementation
6.2.1 Installed and verified meters
6.2.2 New meters
6.2.3 Steps for compliance testing
6.3 Customer-initiated testing
6.4 Location of tests
6.5 Testing on-site
6.6 Transportation and storage
6.7 Returning sample meters to the field
7 Metrological performance—Meter error
8 Procedure for testing meters
8.1 General
8.2 Documentation
8.3 Grouping of meters (Step 1)
8.4 Sample size and pass/fail criteria (Step 2)
8.5 Selection of samples (Step 3)
8.6 Testing of samples (Step 4)
8.7 Calculation of results (Step 5)
8.7.1 Calculation of the weighted relative error (ew)
8.7.2 Outliers
8.7.3 Evaluation of sample
8.8 Decision on the population (Step 6)
8.8.1 Analysis of results
8.8.2 Failure criteria
8.9 Reporting of data
Appendix A
Appendix B
B1 Accuracy by attributes testing indexed by limiting quality (LQ) for isolated lot inspection
Amendment control sheet
Cited references in this standard
[Current]
Meters for cold and heated drinking and non-drinking water supplies, Part 1: Technical requirements
NMI R 49-1
National Measurement Institute, Water Meters Intended for the Metering of Cold Potable Water and Hot Water, Part 1: Metrological and Technical Requirements
[Current]
Sampling procedures for inspection by attributes, Part 2: Sampling plans indexed by limiting quality (LQ) for isolated lot inspection
[Current]
Sampling procedures for inspection by attributes, Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
[Current]
Sampling procedures for inspection by attributes, Part 0: Introduction to the ISO 2859 attribute sampling system
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