TAPPI T 843 om-20评估瓦楞纸介质对瓦楞纸箱抗压强度的影响。这是一种在平行于凹槽尖端的方向上测量实验室凹槽瓦楞介质条边压缩强度的程序。槽边压碎也在应用T 824“瓦楞介质的槽边压碎（柔性梁法）”中进行测量，该方法使用柔性梁压力机代替本程序中使用的刚性压力机。

TAPPI T 843 om-20 evaluates the ability of corrugating medium to contribute to the compression strength of a corrugated box. It is a procedure for measuring the edgewise compression strength of a laboratory-fluted strip of corrugating medium in a direction parallel to the fluted tips.Fluted edge crush is also measured inTAPPI T 824 "Fluted edge crush of corrugating medium (flexible beam method),"which uses a flexible beam compression machine instead of a rigid platen machine as used in this procedure.