“harmonised standard”

1. The Electrical Equipment (Safety) Regulations 2016 SI 3 definitions
2. The Electromagnetic Compatibility Regulations 2005 SI
3. The Electromagnetic Compatibility Regulations 2016 SI 4 definitions
4. The Energy Information (Household Electric Ovens) Regulations 2003 SI
5. The Equipment and Protective Systems Intended for Use in Potentially Explosive Atmospheres Regulations 2016 SI 2 definitions
6. The Explosives Regulations 2014 SI 2 definitions
7. The Gas Appliances (Enforcement) and Miscellaneous Amendments Regulations 2018 SI 2 definitions
8. The Lifts Regulations 2016 SI 3 definitions
9. The Measuring Instruments Regulations 2016 SI 4 definitions
10. The Medical Devices Regulations 2002 SI 6 definitions
11. The Non-automatic Weighing Instruments Regulations 2016 SI 3 definitions
12. The Packaging (Essential Requirements) Regulations 2015 SI 2 definitions
13. The Personal Protective Equipment (Enforcement) Regulations 2018 SI 2 definitions
14. The Pressure Equipment (Safety) Regulations 2016 SI 2 definitions
15. The Pyrotechnic Articles (Safety) Regulations 2015 SI 3 definitions
16. The Radio Equipment and Telecommunications Terminal Equipment Regulations 2000 SI
17. The Radio Equipment Regulations 2017 SI 3 definitions
18. The Recreational Craft Regulations 2017 SI 4 definitions
19. Regulation (EU) 2019/1009 of the European Parliament and of the Council of 5 June 2019 laying down rules on the making available on the market of EU fertilising products and amending Regulations (EC) No 1069/2009 and (EC) No 1107/2009 and repealing Regulation (EC) No 2003/2003 (Text with EEA relevance) EU regulation
20. Regulation (EU) No 305/2011 of the European Parliament and of the Council of 9 March 2011 laying down harmonised conditions for the marketing of construction products and repealing Council Directive 89/106/EEC (Text with EEA relevance) EU regulation
21. The Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations 2012 SI 2 definitions
22. The Simple Pressure Vessels (Safety) Regulations 2016 SI 4 definitions
23. The Supply of Machinery (Safety) Regulations 2008 SI 3 definitions
24. The Toys (Safety) Regulations 1995 SI
25. The Toys (Safety) Regulations 2011 SI 3 definitions
26. The Water Supply (Water Quality) Regulations 2000 SI
27. The Wireless Telegraphy (Ultra-Wideband Equipment) (Exemption) Regulations 2015 SI

Definitions are taken from the instruments as published on zoomLaw, for guidance only. Check the instrument itself for its scope and any amendments.