398 Grammage Price: $306.00

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 February, April, June, August, October and December.