British Standards Document
BS EN 50121-4
Railway applications. Electromagnetic compatibility. Emission and immunity of the signalling and telecommunications apparatus
https://doi.org/10.3403/30340738U
BS EN 50121-4 is maintained by GEL/9. The current release of this standard is:
BS EN 50121-4:2016+A1:2019 Railway applications. Electromagnetic compatibility. Emission and immunity of the signalling and telecommunications apparatus
https://doi.org/10.3403/30340738 (published 31/01/2017)
This standard is available from the following sources:
Other historical versions of this standard document also exist:
- BS EN 50121-4:2016 [current until 02/05/2019]
- BS EN 50121-4:2015 [current until 31/01/2017]
- BS EN 50121-4:2006 [current until 30/04/2015]
- BS EN 50121-4:2000 [current until 31/08/2006]