NF P52-101-1:2006 Pumps - Rotodynamic pumps - Circulation pumps having a rated power input not exceeding 200 W for heating installations and domestic hot water installations - Part 1 : Non-automatic pumps, requirements, testing, marking.
2006NF P52-101-1:2006 Pumps - Rotodynamic pumps - Circulation pumps having a rated power input not exceeding 200 W for heating installations and domestic hot water installations - Part 1 : Non-automatic pumps, requirements, testing, marking.