
TIP 030409 The edge crush test (ECT): its relationship to ...
3 / The edge crush test (ECT): its relationship to box compression TIP 030409 and its derivation from containerboard edge stiffness SL1 = the short span compression (SCT) of liner #1 SL2 = the short span compression (SCT) of liner #2 SM = the short span compression (SCT) of the medium TUF = .