I.S. EN 14812:2005
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Hardcopy , PDF
07-11-2007
English
12-07-2005
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Design requirements
4.1 Materials of construction
4.2 Connections
4.3 Venting
4.4 Radio interference and electrical safety
4.5 Dosing agent containers
4.6 Accessibility
4.7 Nominal size
5 Performance requirements
5.1 Dosing and dosing agents
5.1.1 Dosing agents
5.1.2 Dosing
5.2 Working ranges
5.3 Protection against backflow of proprietary chemical
5.4 Working temperature range
5.5 Pressure conditions
5.5.1 Nominal pressure and working pressure range
5.5.2 Effects of pressure variations
5.5.3 Pressure drop
5.5.4 Water hammer
6 Testing
6.1 General
6.2 Dosing and dosing agents
6.2.1 Test rig
6.2.2 Analysis
6.2.3 Quality of test water
6.2.4 Sampling
6.2.5 Evaluation of results
6.2.6 Dosing agents
6.2.7 Dosing
6.3 Working ranges
6.4 Protection against backflow of dosing agent
6.4.1 Procedure
6.4.2 Evaluation of results
6.5 Pressure conditions
6.5.1 Nominal pressure and working pressure range
6.5.2 Static pressure
6.5.3 Dynamic pressure
6.5.4 Working pressure range
6.5.5 Pressure drop
7 Labelling
7.1 Nameplate on dosing apparatus
7.2 Information to be given on dosing agent container
8 Manufacturer's product information
Annex A (informative) Examples of connections
Annex B (normative) Installation, operation and maintenance
Bibliography
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