BSI BS 2742-1:1972

Current Revision
Notes of the use of Ringelmann and miniature smoke charts. The calibration of instruments in Ringelmann number. (Addendum No. 1:1972)

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BSI BS 2742-1:1972

Notes of the use of Ringelmann and miniature smoke charts. The calibration of instruments in Ringelmann number. (Addendum No. 1:1972)

PUBLISH DATE 1972
PAGES 6
BSI BS 2742-1:1972

Addendum No. 1:1972

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