NEN EN 14154-2 : 2005 + A2 2011

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Criteria for the selection of water meters
   4.1 General considerations
   4.2 Information to be provided by the manufacturer
   4.3 Meters operating in parallel or in a group
5 Installation requirements
   5.1 Compliance with specified metrological characteristics
        5.1.1 General
        5.1.2 Meter operating position
        5.1.3 Hydraulic disturbances
        5.1.4 Water quality (suspended particles)
        5.1.5 Electromagnetic meters
        5.1.6 Meters operating in parallel or in a group
   5.2 Protection of the meter
        5.2.1 General considerations
        5.2.2 Frost
        5.2.3 Shock or vibration either transmitted from or
               induced by the installation
        5.2.4 Reverse water flow
        5.2.5 Installation induced stress and unbalance
        5.2.6 Intentional fraud
   5.3 Safety of personnel and users
        5.3.1 General
        5.3.2 Pipework anchoring
        5.3.3 Manhole installation
        5.3.4 Installations Requirements for pipes greater than
               DN 40
        5.3.5 Protection against hazard related to electrical
               installations
   5.4 Comfort of personnel
        5.4.1 Access to the water meter and fittings
        5.4.2 Associated fittings
   5.5 Ease of reading
6 First operation of new or repaired water meters
   6.1 General consideration
   6.2 Meters operating in parallel or in group
Annex A (informative) Examples of Concentric Manifold
                      Solutions
Bibliography

Defines for selection of water meters, installation requirements and the first operation of new or repaired meters to ensure accurate constant measurement and reliable reading of the meter.