ISO 9835:1993
Current
The latest, up-to-date edition.
Ambient air — Determination of a black smoke index
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English
10-03-1993
Specifies a method for measuring the black smoke index of an ambient air sample based on the staining effect of particles which is produced when a sample of air is drawn through a filter paper. Annex A describes conversion of absorption coefficient to traditional black smoke units.
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