BR820 Aug 1974
Specification for Colours of Light Signals, Colour Filters and Lenses
Synopsis
This specification covers the requirements for colours of light signals and the colourimetric and photometric requirements for colour filters and lenses used in connection with signalling on British Railways and road traffic signals at level crossings.
Read full standard
Registered
Withdrawn
Other
- Issued:
- 01/08/1974
- Published:
- 01/08/1974
- In Force:
- 01/08/1974
- Withdrawn:
- 31/12/1999
Details
| Consultation Status | Closed |
| Vehicle Assessment | No |
| Lead Committee | Control Command and Signalling - CCS |