Industrial communication networks - Fieldbus specifications - Part 6-20: Application layer protocol specification - Type 20 elements (IEC 61158-6-20:2014); English version EN 61158-6-20:2014, only on CD-ROM
Edition 2015-09

Energy management system application program interface (EMS-API) - Part 1: Guidelines and gerneral requirements (IEC 61970-1:2005); German version EN 61970-1:2006, text in English
Edition 2006-12

Telecontrol equipment and systems - Part 6-802: Telecontrol protocols compatible with ISO standards and ITU-T recommendations - TASE.2 Object models (IEC 60870-6-802:2014); English version EN 60870-6-802:2014
Edition 2015-04

Postal Services - Hybrid Mail - Part 1: Secured electronic postal services (SePS) interface specification - Concepts, schemas and operations; English version CEN/TS 15121-1:2011
Edition 2011-03