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.
Direct acting indicating analogue electrical measuring instruments and their accessories; part 1: definitions and general requirements common to all parts (IEC 60051-1:1984, edition 4); german version EN 60051-1:1989— 26 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.
Direct acting indicating analogue electrical-measuring instruments and their accessories - Part 1: Definitions and general requirements common to all parts (IEC 60051-1:1997); German version EN 60051-1:1998— 25 стр.