BS 1747-11:1993
$86.31
Methods for measurement of air pollution – Determination of a black smoke index in ambient air
| Published By | Publication Date | Number of Pages |
| BSI | 1993 | 14 |
This International Standard specifies a method for measuring the black smoke index of an ambient air sample. The method is based on the staining effect of particles which is produced when a sample of air is drawn through a filter paper.
The method is intended for the measurement of a black smoke index in the range 6 to 375 in the ambient atmosphere. It is based on the measurement of reflectance. The method does not measure the mass concentration of particles directly.
Gives a reflectance method for continuous or daily measurement of the black smoke index in the range 6 to 375.
