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Colour of light emitted by signalling equipment. Includes performance requirements for plastics filters and a new method of presentation of data for both glass and plastics filters.
| Author | BSI |
|---|---|
| Editor | BSI |
| Document type | Standard |
| Format | File |
| Confirmation date | 2016-11-01 |
| EAN ISBN | 0 580 08427 2 |
| ICS | 17.180.20 : Colours and measurement of light |
| Number of pages | 44 |
| Replace | BS 623:1940 |
| Cross references | CIE 2.2 |
| Modified by | AMD 3865 published September 1982 effective September 1982 Free of charge incorporated |
| Year | 1970 |
| Country | United Kingdom |
| Keyword | BS 1376 ; BS1376 |