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

Railway applications - Air conditioning for urban, suburban and regional rolling stock - Comfort parameters and type tests; German and English version prEN 14750:2022
Edition 2022-11

Ambient air - Standard method for the measurement of the concentration of ozone by ultraviolet photometry; German and English version prEN 14625:2022
Edition 2022-11

Ambient air - Standard method for the measurement of the concentration of nitrogen dioxide and nitrogen monoxide by chemiluminescence; German and English version prEN 14211:2022
Edition 2022-11

Graphical symbols for diagrams - Part 7: Switchgear, controlgear and protective devices (IEC 60617-7:1996); German version EN 60617-7:1996
Edition 1997-08

Petroleum, petrochemical and natural gas industries - Plate-type heat exchangers - Part 2: Brazed aluminium plate-fin heat exchangers (ISO 15547-2:2005); English version EN ISO 15547-2:2005
Edition 2006-02

Data element catalogue for bibliographic data; systematic part
Edition 1985-05

Graphical symbols for diagrams - Part 6: Production and conversion of electrical energy (IEC 60617-6:1996); German version EN 60617-6:1996
Edition 1997-08

Petroleum and natural gas industries - Packaged reciprocating gas compressors (ISO 13631:2002); German and English version EN ISO 13631:2002
Edition 2003-02

Fasteners; surface discontinuities; bolts, screws and studs subject to special requirements (ISO 6157-3:1988); german version EN 26157-3:1991
Edition 1991-12