With the testing of tiled flooring for slip resistance a HSE necessity for public areas I recently completed a training course at Cooper Test Equipment ltd in the use of their Pendulum skid test equipment which gives an accurate measurement of the coefficient of friction for a floor. The use of these machines is much more involved that you would think and involves taking multiple reading in three different directions in multiple areas.
Additionally being a Tile Doctor were trained in the installation of Anti-Slip treatments and with this training it will be possible to provide slip measurements before and after treatment without having to engage an outside consultant.