Electrical and electronic measuring equipment - Documentation (IEC 61187:1993, modified); German version EN 61187:1994
Edition 1995-06

Open systems interconnection - Protocol for providing the connectionless-mode network service - Part 4: Provision of the underlying service by a subnetwork that provides the OSI data link service; identical with ISO/IEC 8473-4:1995
Edition 1996-06

Open Systems Interconnection - Protocol for providing the connectionless-mode network service - Part 3: Provision of the underlying service by an X.25 subnetwork; identical with ISO/IEC 8473-3:1995
Edition 1996-06

Measurement of the Electrical Properties of Microwave Tubes; Part 1: Terminologie
Edition 1978-09