Optical amplifiers - Test methods - Part 5-2: Reflectance parameters - Electrical spectrum analyser method (IEC 61290-5-2:2003); German version EN 61290-5-2:2004
Edition 2004-12

Fibre optic interconnecting devices and passive components performance standard - Part 061-3: Single mode fibre optic pigtailed style isolators for category U - Uncontrolled environment (IEC 61753-061-3:2004); German version EN 61753-061-3:2004
Edition 2005-04

Generic specification: Discrete pressure contact power semiconductor devices (Qualification approval); German version EN 153000:1998
Edition 1999-01

Fibre optic interconnecting devices and passive components performance standard - Part 091-3: Single-mode fibre optic pigtailed style circulators for category U - Uncontrolled environment (IEC 61753-091-3:2004); German version EN 61753-091-3:2004
Edition 2005-04

Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-31: Examinations and measurements; Coupled power ratio measurement for fibre optic sources (IEC 61300-3-31:2003); German version EN 61300-3-31:2003
Edition 2003-11

Letter symbols for physical quantities; symbols for use in the field of static converters using semiconductor devices
Edition 1994-02

Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 2-27: Tests; dust, laminar flow (IEC 61300-2-27:1995); German version EN 61300-2-27:1997
Edition 1998-09

Testing of materials for semiconductor technology; determination of impurities in carrier gases and doping gases; determination of oxygen impurity in N₂, Ar, He, Ne and H₂ by using a galvanic cell
Edition 1991-03

Testing of materials for semiconductor technology - Test method for particle analysis in liquids - Part 1: Microscopic determination of particles
Edition 1995-11

Reliability of fibre optic interconnecting devices and passive optical components - Part 4: Product screening (IEC 62005-4:1999); German version EN 62005-4:1999
Edition 2001-08