NBN EN 13077 : 2008
Current
The latest, up-to-date edition.
DEVICES TO PREVENT POLLUTION BY BACKFLOW OF POTABLE WATER - AIR GAP WITH NON-CIRCULAR OVERFLOW (UNRESTRICTED) - FAMILY A, TYPE B
12-01-2013
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Designation
5 Symbolization
6 Materials
7 Requirements
8 Marking (not required for site constructed products)
9 Technical documents
Annex A (informative) Relationship between h and l for air
gap Family A, type B with rectangular
overflow
Annex B (informative) Alternative constructions
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