BS 4419 80th Edition, February 29, 1980
Methods for Determination of Folding Endurance of Paper
Includes all amendments and changes through Reaffirmation Notice , August 15, 1990
Additional Comments: SAME AS ISO 5626 * W/D S/S BY BS ISO 5626
Published By:British Standards Institution (BSI)
Describes methods using Köhler Molin, Lhomargy, MIT and Schopper instruments.