UNI EN 817 : 2008

Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and designation
   3.1 Terms and definitions
   3.2 Designation
4 Marking and identification
   4.1 Marking
   4.2 Identification
5 Materials
   5.1 Chemical and hygiene requirements
   5.2 Exposed surface conditions
6 Dimensional characteristics
   6.1 General remarks
   6.2 Inlet dimensions
   6.3 Outlet dimensions
   6.4 Mounting dimensions
   6.5 Special cases
   6.6 Flexible hoses for shower outlets
   6.7 Shower outlets
7 Sequence of testing
8 Leaktightness characteristics
   8.1 General
   8.2 Test methods
   8.3 Leaktightness of the obturator and of the mixing
        valve upstream of the obturators with the
        obturator in the closed position
   8.4 Leaktightness of the mixing valve downstream
        of the obturator with the obturator open
   8.5 Leaktightness of manually operated diverter
   8.6 Leaktightness and operation of diverter with
        automatic return
   8.7 Leaktightness of the obturator: cross flow
        between hot water and cold water
9 Pressure resistance characteristics - mechanical
   performance under pressure
   9.1 General
   9.2 Principle
   9.3 Apparatus
   9.4 Mechanical behaviour upstream of the
        obturator - obturator in the closed position
   9.5 Mechanical behaviour downstream of the
        obturator - obturator in the open position
10 Hydraulic characteristics
   10.1 General
   10.2 Initial settings
   10.3 Principle
   10.4 Apparatus
   10.5 Procedure
   10.6 Determination of flow rate
   10.7 Determination of sensitivity
11 Mechanical strength characteristics - torsion test
   for operating mechanism
   11.1 General
   11.2 Test method
12 Mechanical endurance characteristics
   12.1 Mechanical endurance of the control device
   12.2 Mechanical endurance of diverters
   12.3 Mechanical endurance of swivel spouts
13 Backflow protection
14 Acoustic characteristics
   14.1 General
   14.2 Procedure
   14.3 Requirements
Annex A (informative) - Apparatus
Annex B (informative) - Pressure take-off tee
Bibliography

Describes: - the dimensional, leaktightness, pressure resistance, hydraulic performance, mechanical strength, endurance and acoustic characteristics with which mechanical mixing valves need to comply; - test methods to verify the characteristics.