BENDING RESISTANCE (15°, 10mm)

This test is performed to determine the weight of paper.

Operate the instrument in accordance with ISO 2493 and the manufacturer’s instructions.

Leave the samples exposed for 24 h to 23°C and 50% R.H., according to ISO 187.

Cut 10 test pieces 38 mm wide and approximately 70 mm long with the longer side in the direction of the arrow.

Measure the bending resistance on 10 test pieces.

Place the test pieces with the marked side backwards in the apparatus (upper side).

For all three Levels the bending length is 10 mm and the bending angle 15°.

Report 10 measures in mN, (do not correct for the test length) their mean and standard deviation calculated to 3 significant figures.