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UNE-EN 1717:2001
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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PROTECTION AGAINST POLLUTION OF POTABLE WATER IN WATER INSTALLATIONS AND GENERAL REQUIREMENTS OF DEVICES TO PREVENT POLLUTION BY BACKFLOW.
Hardcopy , PDF
10-08-2023
Spanish, Castilian, English
18-07-2001
Contents
Foreword
Introduction
1. Scope
2. Normative references
3. Terms and definitions
4. Pollution of potable water:
general observations
4.1 Backflow of used water
4.2 Connection
4.3 External influences
4.4 Materials
4.5 Stagnation
4.6 Harm caused by inadequate or
improper maintenance
5. Analysis method of the risks
at the point of use and choice of
protection
5.1 General remarks
5.2 Determination of fluid categories
which are or could be in contact with
potable water
5.3 Determination of the installation
characteristics
5.4 Separation by single or double walls
5.5 Air break to drain
5.6 Installation matrix
5.7 Protection units
5.8 Matrix of the protection units appropriate
to fluid categories
6. Point of use protection for equipment at
the draw-off point for domestic uses
6.1 Choice of the protection units to be
implemented
6.2 Location of the protection units
7. Point of use protection of particular
equipment for non domestic uses
8. Protection at the connection point to
the public potable water system
9. Air break to drain
Annex A(normative) Reference list of the
protection units
Annex B(informative) Guide table for
determining the fluid category from
which protection is required
Annex C(informative) Summary of the analysis
method
Bibliography
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