
Miniature smoke chart.
STANDARD published on 15.8.1960
Designation standards: BS 2742M:1960
Publication date standards: 15.8.1960
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Category: Technical standards BS
A chart, printed in shades of grey matt lacquer, which when held at about 5 ft from the observer gives readings of the density values of smoke from chimneys. These are comparable with those obtained from the BS Ringelmann Chart (BS 2742C). The method of use is explained in BS 2742. Status: Confirmed