EN ISO 4064-1:2017

European foreword
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Metrological requirements
5 Water meters equipped with electronic devices
6 Technical requirements
7 Metrological controls
Annex A (normative) - Performance tests for
        water meters with electronic devices
Annex B (normative) - Checking facilities
Annex C (informative) - Permissible errors in
        service and subsequent verification
Bibliography
Annex ZA (informative) - Relationship between this
         European Standard and the essential requirements
         of Directive 2014/32/EU aimed to be covered

ISO 4064-1:2014|OIML R 49-1:2013 specifies metrological and technical requirements of water meters for cold potable water and hot water flowing through a fully charged, closed conduit. These water meters incorporate devices which indicate the integrated volume.In addition to water meters based on mechanical principles, ISO 4064-1:2014|OIML R 49-1:2013 applies to devices based on electrical or electronic principles, and mechanical principles incorporating electronic devices, used to measure the volume of cold potable water and hot water.ISO 4064-1:2014|OIML R 49-1:2013 also applies to electronic ancillary devices. Ancillary devices are optional. However, it is possible for national or regional regulations to make some ancillary devices mandatory in relation to the utilization of water meters.