Devices to prevent pollution by backflow of potable water - Unrestricted air gap - Family A - Type A
|Publication Date:||1 April 2003|
|ICS Code (Drinking water):||13.060.20|
|ICS Code (Valves in general):||23.060.01|
This European standard specifies the characteristics and the requirements of unrestricted air gaps Family A Type A intended for protection of potable water in water installations from pollution. This standard applies to air gaps in factory assembled products and to constructed air gaps in situ, and defines the physico-chemical characteristics of materials of construction used for the purpose and application to ensure compliance with this standard during normal working use.