TAPPI T 458
Surface wettability of paper (angle of contact method), Test Method T 458 cm-14
68-76 Pocket Goniometer PGX+
The PGX+ measures contact angle (dynamic and static), surface tension, and surface energy
TMI 32-25 Inclined Plane Friction Tester
Slide Angle Friction is a measurement of the angle of inclination at which one substrate affixed to a sled will begin to slide/slip against another substrate of a similar material.