British Standards Document
BS EN 1303
Building hardware. Cylinders and Master-Key-Systems (MKS) for locks. Requirements and test methods
https://doi.org/10.3403/30483337U
BS EN 1303 is maintained by B/538/4. The current release of this standard is:
BS EN 1303:2026 Building hardware. Cylinders and Master-Key-Systems (MKS) for locks. Requirements and test methods
https://doi.org/10.3403/30483337 (published 17/08/2026)
This standard is available from the following sources:
Other historical versions of this standard document also exist:
- BS EN 1303:2015 [current until 17/08/2026]
- BS EN 1303:2005 [current until 30/06/2015]
- BS EN 1303:1998 [current until 22/03/2005]