Excel Tribometers, LLC

ASTM F2508 Validation

BIG NEWS:  XL VIT VALIDATED AS ASTM F2508 COMPLIANT

The world of walkway safety and meaningful tribometry has been in a state of flux since the ASTM Standard Practices were withdrawn because they were based on proprietary devices.  Even though those standards were merely operating instructions for the devices, the adversaries of accurate measurement of slip resistance took advantage of the void to represent that there was no approved, meaningful tribometer.  The ASTM Standard Practices were not approvals or endorsements of the devices, anyhow.  Also in that void, agencies and methodologies, which would not have flourished in the light of meaningful science, have been allowed to survive.  The dark days are over.

The ASTM F2508-11 Standard Practice for Validation and Calibration of Walkway Tribometers Using Reference Surfaces was approved March 15, 2011, and then immediately published.

EXCEL TRIBOMETERS, LLC, as the patent owner, manufacturer and sole authorized supplier of the English XL Variable Incidence/Articulated Strut Tribometer (both the base XL VIT and the XL VIT with sequencer) performed all
requisite testing that demonstrates full performance compliance of both models of the XL VIT with the requirements of F2508.

The Report of Validation for each machine are below:

XL Base-Model Validation Report (F2508 Treaded-Model Test Foot)

XL Base-Model Validation Report (Standard Test Foot and Standardized Test Foot Preparation Device) 

XL with Sequencer Validation Report (F2508 Treaded-Model Test Foot)

XL with Sequencer Validation Report (Standard Test Foot and Standardized Test Foot Preparation Device)

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