BS 2742:Addendum No. 1:1972
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Notes of the use of Ringelmann and miniature smoke charts. The calibration of instruments in Ringelmann number
Hardcopy , PDF
01-02-2008
English
27-06-1972
Important note : Users cannot be edited or removed once added to your Multi user PDF.Provides a relationship for the conversion of measurements of optical density of smoke to \'standard\' Ringelmann numbers.
| Committee |
EH/2/1
|
| DevelopmentNote |
Reviewed and confirmed by BSI, June, 2005. (05/2005) Supersedes 71/43144 DC (06/2005)
|
| DocumentType |
Standard
|
| Pages |
0
|
| PublisherName |
British Standards Institution
|
| Status |
Withdrawn
|
| BS 2740:1969 | Specification for simple smoke alarms and alarm metering devices |
| BS 2742:1969 | Notes on the use of the Ringelmann and miniature smoke charts |
| BS 2811:1969 | Specification for smoke density indicators and recorders |
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