I.S. EN ISO 4064-2:2017

National Foreword
European foreword
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Reference conditions
5 Symbols, units and equations.
6 External examination.
7 Performance tests for all water meters
8 Performance tests related to influence
   factors and disturbances
9 Test program for type evaluation
10 Tests for initial verification
11 Presentation of results
Annex A (normative) - Type examination and testing
        of checking facilities of electronic devices
Annex B (normative) - Calculating the relative error
        (of indication) of a water meter
Annex C (normative) - Installation requirements for flow
        disturbance tests
Annex D (normative) - Type evaluation of a family of
        water meters
Annex E (informative) - Examples of methods and
        components used for testing concentric Water meters
Annex F (informative) - Determining the density of water
Annex G (informative) - Maximum uncertainties in the
        measurement of influence factors and disturbances
Annex H (informative) - Pressure loss test pressure tappings,
        hole and slot details
Annex I (normative) - Flow disturbers
Bibliography
Annex ZA (informative) - Relationship between this
         European Standard and the essential requirements
         of Directive 2014/32/EU aimed to be covered

Provides details of the test programme, principles, equipment and procedures to be used for the type evaluation, and initial verification of a meter type.