Abstract
We examined several variables that can affect slip-resistance measurements obtained using the English XL tribometer to illustrate the importance of implementing the proper controls when using the device to evaluate a slip-and-fall incident. We measured slip resistance at two different locations on the same surface, under wet and dry conditions, with the tribometer oriented in eight different directions per location. Our results showed that location, direction, and surface wetness can affect slip resistance measurements, but the effects interact with each other in unpredictable ways. Discussion focuses on the importance of considering direction as well as location of a particular slip-and-fall, rather than strict adherence to ASTM F1679–04: Standard Test Method for Using a Variable Incidence Tribometer (VIT). We conclude that it is important to consider both location and direction when using the tribometer in analysis of any specific incident occurring on non-uniform surfaces.
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