UNI EN 13077:2018
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Devices for the prevention of pollution from backwater of drinking water - Backflow preventer with non-circular overflow (not limited) - Family A - Type B
30-03-2023
19-04-2018
The standard specifies the characteristics and requirements of non-circular backflow preventers, family A, type B, for nominal flow speed not exceeding 3 m / s.
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