Johnson Forensic GS-1 Operator Certificate Level I and II

Who Should Attend?

Users and owners of the GS-1

  • Engineers
  • Construction Contractors
  • Facility Managers
  • Building Service Contractors
  • Risk Managers/Professionals
  • Safety Engineers/Professionals
  • Flooring Installers/Professionals
  • Architects
  • Interior Designers

What Will I Learn?

Measuring the Static and Dynamic Coefficients of Friction of a surface requires use of a tribometer like the Johnson Forensic GS-1. The GS-1 can be used on most surfaces to measure wet and dry static and dynamic coefficients of friction. In this 4-hour Johnson-approved course you’ll be trained how to use the GS-1 to measure wet and dry static and dynamic coefficients of friction. The course explains the science of slip resistance, the physics of coefficient of friction (COF), and the difference between wet and dry static coefficients of friction (SCOF). Proper preparation and calibration of the GS-1 is essential to properly measuring SCOF and DCOF. The course uses in-person instruction to demonstrate how to prepare neolite and SBR sensor materials. The pretest calibration process is demonstrated. The B101.1, B101.3, and A326.3 procedure to measure dry and wet SCOF and DCOF is explained and demonstrated.

The course includes:

  1. Classroom instruction on the GS-1 preparation, calibration, and test processes
  2. Practical, hands-on use of the GS-1 using the B101.1, B101.3, and A326.3
  3. How to use the GS-1 to use scientific principles to measure the slip resistance of shoe treads
  4. Access to the 3-hour online course “Walkways: What You Need To Know To Design, Maintain, and Insure Cleaner, Safer Floors” (Regular Price $80)
  5. Written and practical test
  6. Johnson Forensic GS-1 Operators Certificate Level I and II

This course trains you to properly use the GS-1. Further study is required to assess slip resistance and provide walkway safety services.

How Will I Benefit?

  1. Understand slip resistance
  2. Understand the physics of coefficient of friction and the difference between static and dynamic coefficients of friction
  3. Learn the proper procedures to prepare and calibrate the GS-1 prior to use
  4. Learn how to measure wet and dry static and dynamic coefficients of friction following the B101.1, B101.3, and A326.3 procedure
  5. Identify resources available to aid in further study of walkway safety and tribometry

Course Information

  1. Course Review & Introduction
  2. Slip Resistance Coefficient of Friction (COF) Static and Dynamic COF
  3. Preparing and troubleshooting the GS-1
  4. Calibrating the GS-1
  5. Using the GS-1 to measure wet and dry SCOF and DCOF following the B101.1, B101.3, and A326.3 procedures
  6. Practical use of the GS-1
  7. Individual testing on the use of the GS-1 to prepare, calibrate, and test using standards
  8. Downloadable checklist include Preparation, Calibration, Measuring WSCOF/WDCOF
  9. Bibliography for further reading
  10. Digital GS-1 Operators Certificates I and II provided upon successful completion of course

NOTE: The B101.1 and B101.3 standards can be included with this course. We strongly recommend purchase of the standards as there is additional information including walkway safety assessment. An excerpt of the A137.1 and the full A326.3 test method standards are included.

Register for the GS-1 Class