EN 297:1994/PRA4:1997 AMD prA4 Gas-Fired Central Heating Boilers - Type B11 and B11BS Boilers, Fitted with Atmospheric Burners of Nominal Heat Input Not Exceeding 70 kW
2003EN 297:1994/A6:2003 Gas-fired central heating boilers - Type B11 and B11BS boilers, fitted with atmospheric burners of nominal heat input not exceeding 70 kW Ratified European Text
1999EN 297:1994/prA6:1999 AMD Gas-Fired Central Heating Boilers - Type B11 and B11BS Boilers, Fitted with Atmospheric Burners of Nominal Heat Input Not Exceeding 70 kW
1997EN 297:1994/PRA4:1997 AMD prA4 Gas-Fired Central Heating Boilers - Type B11 and B11BS Boilers, Fitted with Atmospheric Burners of Nominal Heat Input Not Exceeding 70 kW
1994EN 297:1994 Gas-Fired Central Heating Boilers - Type B11 and B11BS Boilers Fitted with Atmospheric Burners of Nominal Heat Input Not Exceeding 70 kW Incorporates Amendments A1: 1995, A2: 1996, A3: 1996, A4: 2004, A5: 1998 and A6: 2003; Incorporating Corrigendum June