NFSI Reference Check Surfaces are required for use with the NFSI B101.1 or NFSI B101.3 wet COF test standards.  The reference surfaces are verified and labeled with a value used for sensor validation as outlined in NFSI B101.1 or B101.3.    Tile 1 is made of King Starboard KST and tile 2 is engineered patterned glass. Please follow the tribometer manufacturer’s procedures for measuring the reference check surface(s). The following tribometer manufacturers require the use of the NFSI Reference Check Surfaces:

MAD Safety Instruments, Inc., (TRACSCAN)

Impact General (GS-1)

American Slip Meter, Inc. (ASM 825A and ASM 925)