EDGEWISE CRUSH RESISTANCE (ECT) pre-cut
Purpose of the test
This test is performed to determine the edgewise crush resistance of corrugated board performed on samples cut by the sample provider.
Procedure
Operate the instrument in accordance with ISO 3037 and the manufacturer’s instructions.
Leave the samples exposed for 24 h to 23°C and 50% R.H., according to ISO 187.
Test the pieces with the side of 100 mm parallel to the plates of the crush tester.
Report 10 measures in kN/m, their mean and standard deviation calculated to 3 significant figures.
ISO 3037
Nr. of samples
12 test pieces per level.
Sample size 100 x 25 mm²
Levels
Level 1: 6.0÷8.0 kN/m
Level 2: 10.0÷15.0 kN/m
Reporting
Report 10 valid results of measurements in kN/m, their mean and their standard deviation. All to three significant digits.