Protection of metallic materials against corrosion. Guidance on the assessment of corrosion likelihood in water distribution and storage systems. Influencing factors for copper and copper alloys— 20 стр.
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— 26 стр.
Devices to prevent pollution by backflow of potable water. Pipe interrupter with atmospheric vent and moving element DN 10 to DN 20. Family D, t ype B— 20 стр.