DIN EN 15502-2-2:2014-10
Gas-fired central heating boilers - Part 2-2: Specific standard for type B1 appliances; German version EN 15502-2-2:2014 / Note: This standard is part of the DVGW body of rules.*DIN EN 297 (2005-10), DIN EN 297 Berichtigung 1 (2007-07), DIN EN 625 (199...