EN 14154-3:2005+A2:2011

Foreword
1 Scope
2 Normative references
3 Reference conditions
4 Administrative and external examination for
  approval programme
5 Performance tests for approval programme
6 Performance tests related to influence quantities
Annex A (normative) - Irregularity in water velocity
        field
Annex B (informative) - Examples of methods and
        components used for testing Concentric Water
        Meters
Annex C (normative) - Equipment and method used to
        determine meter error
Annex D (informative) - Equipment and methods for pressure
        loss test
Annex E (informative) - Characteristics of reference devices
Annex ZA (informative) - Relationship between this European
         Standard and the Essential Requirements of EU
         Directive 22/2004/EC on Measuring Instruments
Bibliography

This document applies to water meters intended for residential, commercial, light industrial and industrial use, and specifies the test parameters and the test methods for water meters, irrespective of the design technologies, as specified in EN 14154-1:2005+A2, used to meter the actual volume of clean cold potable water or heated water, flowing through a fully charged, closed conduit. These water meters shall incorporate devices, which indicate the integrated volume.In the case where water meters having a value of Q3 > 160 m3/h, the test schedule may make provisions for modification of the Reference Conditions, to meet individual test laboratory limitations, when testing specifically for endurance or for performance under Influence Quantities.Meters thus tested shall be marked so as to unambiguously indicate part compliance with this document. To augment this marking the meter manufacturer shall, in addition, be obliged to fully disclose the specific non compliance(s) due to the test laboratory limitations.