Gas-fired central heating boilers - Type B<(Index)11> and B<(Index)11BS> boilers fitted with atmospheric burners of nominal heat input not exceeding 70 kW; German version EN 297:1994 + A1:1994 + A2:1996 + A3:1996— 74 стр.
Approval testing of welders - Fusion welding - Part 2: Aluminium and aluminium alloys (includes Amendment A1:1997); German version EN 287-2:1992 + A1:1997— 20 стр.