BS 2742:1969
Notes on the use of the Ringelmann and miniature smoke charts
- Standard No.
- BS 2742:1969
- Release Date
- 1969
- Published By
- British Standards Institution (BSI)
- Status
- 2009-05
- Replace By
- BS 2742:2009
- Latest
- BS 2742:2009
- Scope
- Explains the purpose and method of use of these charts for the visual assessment of the darkness of smoke emitted from chimneys.
BS 2742:1969 history
- 2009 BS 2742:2009 Use of the Ringelmann and miniature smoke charts
- 1969 BS 2742:1969 Notes on the use of the Ringelmann and miniature smoke charts
