NEN EN 12541 : 2003

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Classification and Designation
   4.1 Classification of flushing valves
   4.2 Classification of urinal valves
   4.3 Designation
5 Marking
6 Materials
   6.1 Chemical and hygienic requirements
   6.2 Condition of exposed surfaces and
       quality of coating
7 Dimensional characteristics
   7.1 WC flushing valve
   7.2 Urinal valves
8 Leaktightness characteristics
   8.1 General
   8.2 Leaktightness tests
   8.3 Leaktightness tests - Summary table
9 Pressure resistance characteristics
   9.1 General
   9.2 Mechanical behaviour tests
   9.3 Mechanical behaviour tests - Summary table
10 Hydraulic and flow characteristics of WC flushing valves
   10.1 General
   10.2 Test method for WC flushing valves
   10.3 Outline of flow rate-time-volume-impact force test
        and requirements
   10.4 Summary of requirements
   10.5 Measurement of water hammer
11 Principle and verification of atmospheric pipe interrupters
   of WC flushing valves
   11.1 General
   11.2 Atmospheric pipe interrupter composition
   11.3 Installation conditions
   11.4 Verification of absence of water splashes
   11.5 Verification of operation at vacuum
12 Hydraulic or flow characteristics of urinal valves
   12.1 General
   12.2 Test method for urinal valves
   12.3 Requirements
13 Operating force
14 Mechanical endurance characteristics
   14.1 General
   14.2 WC flushing valves
   14.3 Urinal valves
15 Acoustic characteristics
   15.1 General
   15.2 Procedure
   15.3 Requirements

Applies to flushing valves for WCs and valves for urinals, with automatic hydraulic closure. It does not apply to no-contact detection valves.