3615 Hercules Sizing Test (formerly test 399) Price: $332.00

Participants receive two similar samples for testing. Each sample consists of ten pre-conditioned 4 1/4" x 5 1/2" sheets that are tested using TAPPI Method T530. 
Participants prepare a test ink composed of a 1.25% solution of Naphtol Green B dye and 1.0% formic acid ink. The samples are tested to an 80% reflectance endpoint.
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.