Gas-fired central heating boilers - Specific requirements for condensing boilers with a nominal heat input not exceeding 70 kW; German version EN 677:1998— 10 стр.
Aerospace series - Heat resisting alloy NI-PH2601 (NiCr19Fe19Nb5Mo3) - Solution treated and precipitation treated - Bar and section, De <kleiner =>200 mm; German and English version FprEN 4376:2014
Heating systems in buildings - Method for calculation of system energy requirements and system efficiencies - Part 3-3: Domestic hot water systems, generation; German version EN 15316-3-3:2007— 33 стр.
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.
Gas-fired central heating boilers - Type B<(Index)11> and B<(Index)11BS>boilers, fitted with atmospheric burners of nominal heat input exceeding 70 kW; Amendment A5; German version EN 297:1994/A5:1998— 4 стр.
Contract procedures for building works - Part C: General technical specifications for building works; Systems for heating and central water heating— 21 стр.
Heating systems in buildings - Method for calculation of system energy requirements and system efficiencies - Part 3-3: Domestic hot water systems, generation; German version EN 15316-3-3:2007— 34 стр.
