351 Color and Color Difference Price: $312.00


Participants receive two similar samples for testing. Each sample consists of eight pre-conditioned 4 1/4" x 5 1/2" sheets. Measurements are made following TAPPI Method T524 for directional geometry instruments or TAPPI Method T527 for diffuse geometry instruments.
 
Papers selected for this analysis have a low amount of fluorescent whitening agents (FWA)
 
Test results MUST be reported as Hunter L a b.
 
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.