3135 Grammage - Basis Weight (formerly test 398) Price: $332.00

Participants receive two similar samples for testing. Each sample consists of ten pre-conditioned 13" x 20" sheets. Participants determine the grammage of these two slightly different papers, within the range of 70 to 110 grams/square meter, following TAPPI Method T410.
Enroll at any time; your subscription will start with the next scheduled shipping date and will include six (6) shipments.
Testing conducted during January, March, May, July, September and November.