Heating boilers - Part 6: Heating boilers with forced draught burners - Specific requirements for the domestic hot water operation and energy performance of water heaters and combination boilers with atomizing oil burners of nominal heat input not exceeding 70 kW; German version EN 303-6:2019
Edition 2019-12

Heating boilers - Part 7: Gas-fired central heating boilers equipped with a forced draught burner of nominal heat output not exceeding 1 000 kW; German version EN 303-7:2006
Edition 2007-05

Heat exchangers - Methods of measuring the parameters necessary for establishing the performance; German version EN 306:1997
Edition 1997-07

Heat exchangers - Test procedures for establishing performance of air to air heat recovery components; German version EN 308:2022
Edition 2023-06

Heat exchangers - Forced convection air cooled refrigerant condensers - Test procedures for establishing performance; German version EN 327:2014
Edition 2014-11

Manually operated ball valves and closed bottom taper plug valves for gas installations for buildings; German version EN 331:2015
Edition 2016-04

Gas pressure regulators for inlet pressures up to 10 MPa (100 bar); German and English version EN 334:2019
Edition 2019-11

Protective clothing - Ensembles and garments for protection against cold; German version EN 342:2017
Edition 2018-01

Refrigerating systems and heat pumps - Safety and environmental requirements - Part 2: Design, construction, testing, marking and documentation; German version EN 378-2:2016
Edition 2018-04

Refrigerating systems and heat pumps - Safety and environmental requirements - Part 4: Operation, maintenance, repair and recovery; German version EN 378-4:2016+A1:2019
Edition 2019-12