Dear Customers,
We will be on our Christmas break from 23 December 2025 at 1:00 p.m. and will be available again from 5 January 2026.
Please note that new registrations and requests requiring manual processing will only be handled from this date onwards.
You may, of course, place orders and access downloads online at any time.
We wish you happy holidays, a restful break, and a healthy start to the New Year!
Your DIN Media
Standard [CURRENT]
Product information on this site:
Quick delivery via download or delivery service
All transactions are encrypted
The colours and their boundaries specified in this standard are generally designed for signal lights as used in railway traffic and in local public transport in cases where the colour is part of the information furnished by the signal light. The colour selection corresponds to the recommendations of the International Commission on Illumination (CIE) for a light signal system with five colours. Committee NA 025-00-05 GA "Gemeinschaftsarbeitsausschuss FNF/FNL: Optisches Signalwesen und Kennfarben" ("Joint Working Committee FNF/FNL: Optical signalling and identification colours") at DIN is responsible for this standard.
This document replaces DIN 6163-4:2011-07 , DIN 6163-5:2002-02 .