Recommended Methods No. 41 - Determination of the Draw Resistance of Cigarettes and Filter Rods (CRM developed into ISO 6565) June 2007 - second edition
Recommended Methods obsolete No. 40 - Determination of Air Permeability of Materials used as Cigarette Papers, Filter Plug Wrap and Filter Joining Paper including Materials having an Oriented Permeable Zone (CRM developed into ISO 2965) October 1994