261 Short Span Compression Strength of Medium (STFI) Price: $552.00


Medium samples are randomized, pre-conditioned and sealed in moisture-proof packaging. Participants receive 4 packs of 5 sheets of 26lb. medium each month for weekly testing.
 
Short span compression (STFI) is determined using TAPPI Method T826.
 
Enroll at any time; your subscription will start with the next scheduled shipping date and will include twelve (12) shipments.
 
Samples are shipped during the second week of the month prior to the month during which testing is conducted.