BS EN 1717 : 2001
Current
The latest, up-to-date edition.
PROTECTION AGAINST POLLUTION OF POTABLE WATER IN WATER INSTALLATIONS AND GENERAL REQUIREMENTS OF DEVICES TO PREVENT POLLUTION BY BACKFLOW
Hardcopy , PDF
English
01-01-2001
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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
Describes the means to be used to prevent the pollution of potable water inside premises and the general requirements of protection devices to avoid pollution by backflow.
| Committee |
B/504/4
|
| DevelopmentNote |
Supersedes 94/109712 DC. (09/2005)
|
| DocumentType |
Standard
|
| Pages |
54
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| UNI EN 1717 : 2002 | Identical |
| NBN EN 1717 : 2001 | Identical |
| NS EN 1717 : 2000 | Identical |
| SN EN 1717 : 2001 | Identical |
| I.S. EN 1717:2000 | Identical |
| NF EN 1717 : 2001 | Identical |
| UNE-EN 1717:2001 | Identical |
| EN 1717:2000 | Identical |
| DIN EN 1717:2011-08 | Identical |
| NEN EN 1717 : 2000 | Identical |
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