UNI CEI EN ISO 4064-2 : 2014
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
WATER METERS FOR COLD POTABLE WATER AND HOT WATER - PART 2: TEST METHODS
20-07-2017
01-01-2014
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 EU Directive 2004/22/EC
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