a property of a surface describing its ability to prevent slippage; one of the selected parameters is usually used to express this property:
slip resistance class according to DIN 51130 – R9, R10, R11, R12, R13
slip resistance class according to DIN 51097 – A, A+B, A+B+C
Coefficient of friction
the testing of this parameter is subjective and the result most often cannot be replicated; however, even with identical measuring conditions, it may be burdened with error; when choosing tiles, we should be guided by our individual perception of this parameter, and we should also consider the target location of the tiles; it should also be remembered that tiles with a higher coefficient of friction will be more difficult to keep clean.