Standards ČSN - Czech national standards - Page 6981

Devices to prevent pollution by backflow of potable water - Hose Union anti-vacuum valves - DN 15 to DN 25 inclusive Family H, type B and type D - General technical specification

WITHDRAWN published on 1.1.2021

Devices to prevent pollution by backflow of potable water - Hose Union anti-vacuum valves - DN 15 to DN 25 inclusive Family H, type B and D - General technical specification

WITHDRAWN published on 1.8.2008

Influence of materials on water intended for human consumption - GC-MS identification of water leachable organic substances

WITHDRAWN published on 1.10.2015

Valves and fittings for buildings and devices to prevent pollution by backflow of potable water - Polymer parts and housings under internal pressure and without external loads

Standard published on 1.4.2025

Calculation of water installations inside buildings

Standard published on 1.2.2014

Výpočet vnitřních vodovodů.

Change published on 1.12.2018

Calculation of water installations inside buildings

WITHDRAWN published on 1.7.2007

Devices to prevent pollution by backflow of potable water - Unrestricted air gap-Family A - Type A

Standard published on 1.12.2003

Protection against pollution of water intended for human consumption in potable water installations and general requirements for devices to prevent pollution by backflow

Standard published on 1.11.2025

Protection against pollution of potable water in water installations and general requirements of devices to prevent pollution by backflow

WITHDRAWN published on 1.4.2002