Reel or roll quality

1. Check by sounding with a stick (reel and roll).
2. Check using Smith roll hardness tester (roll).
3. Check with a hardness tester (Gavelin, Rhometer, modified Schmidt, concrete test hammer, Billy stick).
4. Test by cutting open the roll in sections and examining the full length of the paper (Cameron strain test).
5. Monitor by profiling the roll with special equipment to determine the degree of irregularity.