Standards

HEAT METERS
The European Standard EN 1434 applies to heat meters, that is to instruments intended for measuring the heat which, in a heat-exchange circuit, is absorbed or given up by a liquid called the heat-conveying liquid.

Title and parts
EN 1434-1:2007 Heat meters - Part 1: General requirements
EN 1434-2:2007 Heat Meters - Part 2: Constructional requirements
EN 1434-3:2008 Heat Meters - Part 3: Data exchange and interfaces
EN 1434-4:2007 Heat Meters - Part 4: Pattern approval tests
EN 1434-5:2007 Heat Meters - Part 5: Initial verification tests
EN 1434-6:2007 Heat Meters - Part 6: Installation, commissioning, operational monitoring and maintenance

The EN 1434 standard was developed by CEN TC 176.
 

WATER METERS

The European Standard EN 14154 applies to water meters intended for residential, commercial, light industrial and industrial use, and specifies the requirements and certification procedures for water meters, irrespective of the design technologies used to meter the actual volume of clean cold potable water or heated water, flowing through a fully charged, closed conduit.

Title and parts

EN 14154-1:2007 Water meters - Part 1: General requirements
EN 14154-2:2007 Water meters - Part 2: Installation and conditions of use
EN 14154-3:2007 Water meters - Part 3: Test methods and equipment

The EN 14154 standard was developed by CEN TC 92.