NBN EN ISO 3822-4 : 1997

Foreword
   Introduction
1 Scope
2 Normative references
3 Mounting and operating conditions
    3.1 Connection of appliances
    3.2 Float-operated valves
    3.3 Flushing valves
    3.4 Water Heating Appliances
    3.5 Mixing valves for instantaneous heaters of the
          closed type
    3.6 Mixing valves for overflow (open outlet) type
          water heaters
    3.7 Fittings for the connection of household equipment
    3.8 Outlet fittings
4 Test report
Annex A (normative) Low-noise flow resistances with
calibrated flow rate
Annex B (normative) Adaptors for the connection of low-
noise flow resistances with calibrated flow rate
Annex C (normative) Adaptors for the connection of
outlet fittings
Annex D (normative ) Arrangement for testing shower
handsets
Annex E (informative) Summary of water heater types
and test configurations

Defines the mounting and operating conditions for use by a number of appliances which cannot be regarded as draw-off or in-line valves, for measuring the noise emission from water flow.