Measurement of quartz crystal unit parameters by zero phase technique in a pi-network - Part 3: Basic method for the measurement of two-terminal parameters of quartz crystal units up to 200 MHz by phase technique in a pi-network with compensation of the parallel capacitance Cₒ (IEC 60444-3:1986); German version EN 60444-3:1997
Edition 1997-10

Measurement of quartz crystal unit parameters by zero phase technique in a pi-network - Part 4: Method for the measurement of the load resonance frequency fL, load resonance resistance RL and the calculation of other derived values of quartz crystal units, up to 30 MHz (IEC 60444-4:1988); German version EN 60444-4:1997
Edition 1997-10

Multi-pair cables used in high bit rate digital access telecommunication networks - Part 1: Outdoor cables; German version EN 50407-1:2004
Edition 2005-02

End user multi-pair cables used in high bit rate telecommunication networks - Part 1: Aerial cables; German version EN 50406-1:2004
Edition 2005-02

Design of graphical symbols for use in the technical documentation of products - Part 3: Classification of connect nodes, networks and their encoding (IEC 81714-3:1998); German version EN 81714-3:2001
Edition 2001-12

End user multi-pair cables used in high bit rate telecommunication networks - Part 2: Duct and buried cables; German version EN 50406-2:2004
Edition 2005-02

Measurement of quartz crystal unit parameters by zero phase technique in a π-network - Part 1: Basic method for the measurement of resonance frequency and resonance resistance of quartz crystal units by zero phase technique in a π-network (IEC 60444-1:1986 + A1:1999); German version EN 60444-1:1997 + A1:1999
Edition 2000-09

Methods of measurement for equipment used in digital microwave radio transmission systems; part 2: measurements on terrestrial radio-relay systems; section 3: RF branching networks (IEC 60835-2-3:1992); German version EN 60835-2-3:1993
Edition 1993-12

Multimedia home networks - Home network communication protocol over IP for multimedia household appliances (IEC 62457:2007); German version EN 62457:2008
Edition 2008-07

Communication systems for meters - Wireless mesh networking for meter data exchange - Part 1: Introduction and standardization framework; German version EN 16836-1:2016
Edition 2017-02