In order to reduce the number of accidents on our buses, we need to ensure that the floors used have a competent slip resistance rating. There are three commonly used tests for slip resistance, each different to the other and therefore, testing for different things. Two are commonly used: the ramp test and the pendulum test.
If this is not representative of the area where you wish to install the floor, the data will be misleading. Another common problem is interpreting the data produced. Each ‘R’ value contains a range of possible results making it difficult to ascertain how slippery a floor is.1
It is also important to consider that the ramp test can only be conducted on flooring prior to installation, so a ramp test cannot be used to measure sustained slip resistance or monitor how effective a cleaning regime is for maintaining slip resistance. So, while an R classification is a good indicator of a general value of the slip resistance of your chosen floor, to get a more accurate interpretation it is better to view these values alongside a coefficient of friction or a pendulum test value.
On all Altro flooring technical information, you will find both an R value and a PTV to describe slip resistance. This is because we’re proud that our flooring achieves such excellent safety accreditation and we want to be as open and honest with you as possible about the flooring you choose.