Slip Resistance Rating Systems
There are the 2 rating systems used in tile:
Static Coefficient of Friction (SCOF)
is the oldest method used to measure the slip resistance of tile., This measurement is inaccurate as it measures the slip resistance of tile when standing still (static.) In most cases even ice is not slippery when you stand still and this is why there is a newer method for measuring slip resistance.
Dynamic Co-Efficient Of Friction (DCOF)
is the newer method used to measure slip resistance and is highly recognized as the most accurate. It is measured in a way that more naturally represents a human stride. This is vitally important especially when considering tile around wet areas such as bathrooms and pools.