
Use of the Ringelmann and miniature smoke charts.
NORMA vydána dne 31.5.2009
Designation standards: BS 2742:2009
Publication date standards: 31.5.2009
The number of pages: 14
Approximate weight : 42 g (0.09 lbs)
Country: British technical standard
Kategorie: Technické normy BS
ISBN: 978 0 580 62300 4 Status: Confirmed