This tile is used in conjunction with ANSI A326.3, test method for dynamic coefficient of friction (DCOF) for hard surface flooring materials. All tiles are carefully verified and labeled with a value used for sensor validation as stated in ANSI A326.3. The validation surface is available in 8″x20″ or 2″x12″. A holding fixture, required for use with the 2″x12″ validation surface, is available for an additional $50.00.