Excel Tribometers, LLC

CXLT Course Outline

CXLT Certification Program
Program Outline

BASIC SAFETY ENGINEERING PRINCIPLES

• Methodologies related to walkway safety and footwear safety.

 

DEFINE THE HAZARD

• Possibilities for slip and fall injury and in various environments and circumstances.
• Define human ambulation dynamics, stride phases and length, heel strike velocity, the ankle, biofeedback, and expectation.
• Physics of slipping. When do slips occur?
• Define required slip resistance and available slip resistance.
• Rationale for 0.50, and what does it mean.

 

ASSESS THE RISK

• Probabilities and magnitudes for injury and loss.
• Accurate reporting of fall injury events.

 

MITIGATE HAZARDS OF SIGNIFICANT RISK

• Measure available slip resistance, then compare with required slip resistance, to identify materials and conditions of significant risk.
• Define measures to correct conditions where the available slip resistance is less than the required slip resistance, including increase the available slip resistance, restrict access/exposure, and/or provide warnings.
• Factors that affect traction.
• Control the risk.

 

SLIPMETER TECHNOLOGY:   MEASURE AVAILABLE SLIP RESISTANCE

• What is slip resistance, SCOF and DCOF.  What about roughness?
• Must measure contaminated as well as clean and dry.
• Liquid contaminants: squeeze film, sticktion, residence time.
• Available slipmeter technology, historical and current.
• Test foot material.
• Why the reference tile?  How slippery is ice?
• References, standards and codes

 

COMPETENT OPERATION OF THE ENGLISH XL VIT

• Objectives:  precision and consistency.
• Hands-on demonstrations and practice throughout the program.
• Basic principles of operation.
• The XL VIT machine: significant components, their functions, and what effects proper functioning.
• Loading the CO2 cartridge, using the regulator and setting actuation pressure.
• Proper firing of the slip meter: operator positions, grips, pressing the actuator button, timing of actuations, duration of application of force, delay between actuations to achieve a quiet cylinder and stable pressure, and other techniques.
• Test foot preparation, cleaning the test foot, and how test foot conditions effect results.
• Calibration of the test foot, significance of variations, remedies.
• Setup at the sampling location, and test surface preparation.
• Dry, wet-with-water, and special test conditions.
• Orthogonal test directions, and other test locations.
• Directional properties of test surfaces.
• Results patterns, when is enough enough?
• Absorptive and contaminated materials.
• Temperature and relative humidity affects on the slip meter and at the sampling location.
• Testing stairs treads.
• Testing grossly textured surfaces.
• Cleaning, storage, and shipping of your slip meter.
• Maintenance of your slip meter.

DOCUMENTATION METHODS

• Recording test results.
• Reporting test results.

 

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