EN 55035:2017 (E) BS EN 55035:2017 Publication Year Title EN/HD Year IEC 61000-4-20 2010 Electromagnetic compatibility (EMC) — Part 4-20: Testing and measurement tech niques — Emission and immunity testing in transverse electromagnetic (TEM) waveguides EN 61000-4-20 2010 IEC 61000-4-21 2011 Electromagnetic compatibility (EMC) — Part 4-21: Testing and measurement tech niques — Reverberation chamber test methods EN 61000-4-21 2011 ISO 9241-3 1992 Ergonomic requirements for office work with visual display terminals (VDTs) — Part 3: Visual display requirements EN 29241-3 1993 IEEE Standard 802.3 IEEE Standard for Ethernet, Section Three 4