1. BS ISO 21018-1:2008. Hydraulic fluid power - Monitoring the level of particulate contamination of the fluid - Part 1: General principles

2. BS ISO 21018-3:2008. Hydraulic fluid power - Monitoring the level of particulate contamination of the fluid - Part 3: Use of the filter blockage technique

3. BS ISO 21047:2009. Information and documentation - International Standard Text Сode (ISTC)

4. BS ISO 21048:2014. Plastics - Epoxy resins - Determination of 1,2-glycol content

5. BS ISO 21076:2016. Space data and information transfer systems - Space communications cross support - Architecture requirements document

6. BS ISO 21077:2016. Space data and information transfer systems - Digital motion imagery

7. BS ISO 21080:2016 Space data and information transfer systems - Licklider transmission protocol (LTP) for CCSDS

8. BS ISO 21100:2014. Air cargo unit load devices - Performance requirements and test parameters

9. BS ISO 21107:2015. Rolling bearings and spherical plain bearings - Search structure for electronic media - Characteristics and performance criteria identified by property vocabulary

10. BS ISO 21172-1:2015. Gas cylinders - Welded steel pressure drums up to 3 000 litres capacity for the transport of gases - Design and construction - Part 1: Capacities up to 1 000 litres