DIN EN 297 Berichtigung 1:2007-07
Отменен
Gas-fired central heating boilers - Type B boilers, fitted with atmospheric burners of nominal heat input not exceeding 70 kW; German version EN 297:1994 + A1:1994 + A2:1996 + A3:1996 + A4:2004 + A5:1998 + A6:2003, Corrigenda to DIN EN 297:2005-10; German version EN 297:1994/A2:1996/AC:2006
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