Natural gas - Calculation of thermodynamic properties - Part 2: Single-phase properties (gas, liquid, and dense fluid) for extended ranges of application (ISO 20765-2:2015); German version EN ISO 20765-2:2018
Edition 2018-12

Industrial furnaces and associated processing equipment - Safety - Part 2: Combustion and fuel handling systems (ISO/DIS 13577-2:2021); German and English version prEN ISO 13577-2:2021
Edition 2021-11

Biogas systems - Non-household and non-gasification (ISO 24252:2021); German version EN ISO 24252:2022
Edition 2024-04

Industrial furnaces and associated processing equipment - Safety - Part 2: Combustion and fuel handling systems (ISO 13577-2:2023); German version EN ISO 13577-2:2023
Edition 2024-09

Gas-fired endothermic engine driven heat pumps - Part 2: Safety; German and English version prEN 16905-2:2021
Edition 2022-01

Generating sets - Reciprocating internal combustion engines driven generating sets - Part 14: Combined heat and power system (CHPS) with reciprocating internal combustion engines; basics, requirements, components and application
Edition 1997-08

Gas infrastructure - Quality of gas - Hydrogen used in rededicated gas systems; German version CEN/TS 17977:2023
Edition 2024-06

Gas-fired sorption appliances for heating and/or cooling with a net heat input not exceeding 70 kW - Part 2: Safety; German and English version prEN 12309-2:2023
Edition 2023-10

Water tube boilers and auxiliary installations - Part 15: Acceptance tests; German version EN 12952-15:2003
Edition 2004-01

Gas meters - Conversion devices - Part 3: Flow computer; German version EN 12405-3:2015
Edition 2016-04