Wet pendulum Slip testing allows for the most accurate on site slip testing. The classification system for the surface finish type runs from P0 and would typically be represented by a highly polished surface at the lowest end of the spectrum right through to P5 at the top end of the range and represented by a heavily broomed concrete surface or 450 grit sandpaper.
Table 1 HB 198: 2014 (appendix 1) Guide to the specification and testing of Slip resistance of pedestrian surfaces which may be relevant to your circumstances. Please note this is a guide only, a Risk assessment of the area should be undertaken to determine the full risk of a slip.
