The extent to which the pendulum fails to reach its release height on the overswing is used as a measurement of the slip resistance.
There are two types of slider materials in use; the Four S rubber (Simulated Standard Shoe Sole) and TRL (Transport Research Laboratory) rubber. Of the two, The Four S rubber is the one most commonly used.
Once the device is ready for testing, the surface is tested according to the relevant standard specifications. The results are recorded and a slip resistance test certificate is issued.
The table below will interpret the results and the certificate will nominate the corresponding classification as well.
|INTERPRETATION OF WET PENDULUM RESULTS
(Reproduced from AS/NZS 4586)
Contribution of the floor surface
|1. While either of these test methods may be used, the test report shall specify which slider was used.|
Sources: CSIRO / Global Safe / Attar
Image Source: Safe Environment