The friction between the floor and the pedestrian's shoe bottom is an important factor in walkway safety. There exist a number of instruments, called tribometers, for measuring this quantity. The ASTM F 13.1 Subcommittee on Tribometry, part of the ASTM F-13 Committee on Safety and Traction for Footwear, held a workshop in 1991 at Bucknell University, Lewisberg, PA. At that workshop, a number of commonly used and experimental tribometers were tested under strict laboratory conditions: The ASTM C-1028 horizontal-pull drag sled, Technial Products Model 80 drag sled, Slip Test Mark I Portable Articulated-Strut Tribometer, Slip Test Mark II Portable Inclined-Strut Tribometer, Horizontal Pull Slipmeter drag sled, Tortus dynamic drag sled, Sigler pendulum dynamic tribometer, and the James Articulated-Strut. This paper describes a number of results from that workshop.
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