Labs will use the TAPPI Method T575 to determine surface topography. Samples ship second week of each month prior to the month during which testing is conducted.

Labs will use the TAPPI Method T538 to determine surface roughness. Samples ship second week of each month prior to the month during which testing is conducted.

Labs will use the TAPPI Method T569 to determine internal bond strength. Samples ship second week of each month prior to the month during which testing is conducted.

Labs will use the TAPPI Method T815 to determine slide angle. Samples ship second week of each month prior to the month during which testing is conducted.

Labs will use the TAPPI Method T460 to determine air resistance. Samples ship second week of each month prior to the month during which testing is conducted.