This European Standard specifies:
- the dimensional, mechanical, hydraulic and acoustic characteristics with which flow rate regulators should comply;
- the procedures for testing these characteristics.
This European Standard is applicable to:
- flow rate regulators intended to be mounted on tapware used with sanitary appliances in toilets, washrooms and kitchens (single taps, combination tap assemblies, mechanical mixing valves, thermostatic mixing valves);
- flow rate regulators used under the following pressure and temperature conditions:

Flow rate regulators can only be connected downstream of the obturator of the tap.