How often do I have to test my floor?

To assess the risk, it is necessary to understand the slip resistance of the installed, in-service floor.
Frequency of follow up tests should consider the use of the floor, including the cleaning process, types of contamination, the amount and type of traffic.
A good approach is an annual test, combined with a good observation of near misses to evaluate if that period should be shortened.
Changes in cleaning regimes, a flooring treatment or significant changes in use may warrant retesting.