TAPPI T 826Short span compressive strength of paperboard
This method describes a procedure for determining the compressive resistance of containerboard. This method is intended for containerboard having a span-to-thickness ratio of 5 or less. This is equivalent to a grammage of between approximately 100 g/m2 (20 lb/1000ft2) and 440 g/m2 (90 lb/1000 ft2).