ONORM EN 246 : 2003

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Designation
5 Marking - Identification
6 Materials
   6.1 Chemical and hygienic characteristics
   6.2 Exposed surface condition and quality of
        coating
7 Dimensions
   7.1 Flow rate regulators with internal thread
   7.2 Flow rate regulators with external thread
   7.3 Ball joint flow rate regulators
8 Hydraulic characteristics
   8.1 General
   8.2 Flow rate
   8.3 Evaluation of the jet formation
9 Mechanical performance of flow rate regulators
   under high temperature
   9.1 General
   9.2 Test method
10 Mechanical performance of flow rate regulators
   with plastic housing
   10.1 General
   10.2 Test method
11 Acoustic characteristics
   11.1 General
   11.2 Procedure
   11.3 Requirements
Annex A (normative) Dimensions for the mounting of
        flow rate regulators on nozzle outlets of
        tapware
Bibliography

Gives the dimensional, hydraulic and acoustic properties to which flow rate regulators intended to be mounted on sanitary tapware shall correspond and the test methods whereby these properties may be verified. Covers field of application, references, definitions or applications, designation, materials, dimensional properties, hydraulic properties, flow rate, evaluation of the shape of flow, aeration of flow, acoustic properties and marking.