Information technology - Coded graphic character set for use in the preparation of documents used in electrotechnology and for information interchange (IEC 61286:2001, modified); German version EN 61286:2002— 22 стр.
Information technology - Coded graphic character set for use in the preparation of documents used in electrotechnology and for information interchange (IEC 61286:1995); German version EN 61286:1995— 11 стр.
Design of graphical symbols for use in the technical documentation of products - Part 1: Basic rules (ISO 81714-1:2010); German version EN ISO 81714-1:2010— 22 стр.
Design of graphical symbols for use in the technical documentation of products - Part 1: Basic rules (ISO 81714-1:1999); German version EN ISO 81714-1:1999— 14 стр.