Information technology - Coding of audio-visual objects - Part 4: Conformance testing; Amendment 9: AVC fidelity range extensions conformance
Edition 2006-03

Information technology - Coding of audio-visual objects - Part 4: Conformance testing; Amendment 9: AVC fidelity range extensions conformance; Technical Corrigendum 1
Edition 2007-10

Information technology - Coding of audio-visual objects - Part 4: Conformance testing; Amendment 9: AVC fidelity range extensions conformance; Technical Corrigendum 2
Edition 2012-08

Terrestrial Trunked Radio (TETRA) - Conformance testing specification - Part 4: Protocol testing specification for Direct Mode Operation (DMO); Sub-part 9: Abstract Test Suite (ATS) for Mobile Station (MS) Gateway (Endorsement of the English version ETS 300394-4-9:1999 as German standard)
Edition 2000-05

Photovoltaic devices - Part 9: Classification of solar simulator characteristics (IEC 60904-9:2020); German version EN IEC 60904-9:2020
Edition 2024-05

Instrument transformers - Part 4: Additional requirements for combined transformers (IEC 61869-4:2013); German version EN 61869-4:2014
Edition 2015-04

Alarm systems - Social alarm systems - Part 9: IP Communications Protocol; German version CLC/TS 50134-9:2018
Edition 2019-04

Investigations of raw material in hard-coal-mining - Microscopical examination of hard coal, coke and briquettes - Part 4: Microlithotype analysis on particulate blocks
Edition 1998-12

Fire detection and fire alarm systems - Part 4: Power supply equipment; German version EN 54-4:1997
Edition 1997-12

Fixed firefighting systems - Gas extinguishing systems - Part 4: Physical properties and system design of gas extinguishing systems for HFC 125 extinguishant (ISO 14520-8:2019, modified); German version EN 15004-4:2020
Edition 2020-12