Information Technology - Multimedia Framework (MPEG-21) - Part 5: Rights Expression Language - Amendment 1: MAM (Mobile And Optical Media) Profile (Adopted Amendment 1:2007 to ISO/IEC 21000-5:2004)
Edition 2007

Information Technology - Multimedia Framework (MPEG-21) - Part 5: Rights Expression Language - Amendment 2: DAC (Dissemination and Capture) Profile (Adopted Amendment 2:2007 to ISO/IEC 21000-5:2004)
Edition 2008

Information Technology - Multimedia Framework (MPEG-21) - Part 5: Rights Expression Language
Edition 2007-11-01

Information Technology - Multimedia Framework (MPEG-21) - Part 5: Rights Expression Language - Amendment 3: OAC (Open Access Content) Profile (Adopted Amendment 3:2008 to ISO/IEC 21000-5:2004)
Edition 2009

Information technology - Multimedia framework (MPEG-21) - Part 20: Contract Expression Language (Adopted ISO/IEC 21000-20:2016, second edition, 2016-12-15)
Edition 2018-01-01

Information technology - Multimedia framework (MPEG-21) - Part 8: Reference software - Amendment 3: Contract Expression Language (CEL) and Media Contract Ontology (MCO) Reference Software
Edition 2015-04

Health informatics - Expression of results of measurements in health sciences
Edition 2006-04-01

Gas analyzers - Expression of performance - Part 3: Paramagnetic oxygen analyzers (IEC 65D/54/CDV) (Amendment)
Edition 1999-11-01

Ergonomics - Method for the integration of strapping physical support devices and robots like exoskeletons - Expression of needs, selection, design, assessment and implementation
Edition 2023-08-02

BS ISO/IEC 21000-20. Information technology. Multimedia framework (MPEG-21). Contract Expression Language
Edition 2012-04-17