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BS EN 1717 : 2001

Current
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
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-2001

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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