3531 Roughness - Print Surf 0.5-4.0 Microns (formerly test 376) Price: $332.00

Participants receive two similar samples of coated printing papers for testing. Each sample consists of ten pre-conditioned 4 1/4" x 11" sheets that are tested using TAPPI Method T555. 
Enroll at any time; your subscription will start with the next scheduled shipping date and will include six (6) shipments.
Testing conducted during February, April, June, August, October and December.