R-Ratings (and ABC Ratings) came about from German DIN Standard Ramp Tests and were designed for SPECIFIC floors, trodden on by SPECIFIC footwear when faced with SPECIFIC Contaminants (motor oil). Once an R-Rating is conducted, then a Floor Pendulum Test was conducted; but the Pendulum Test could have a very wide range of results and was SPECIFIC to that set of circumstances and never meant for GENERIC EVERYDAY specifications of floor surfaces
Look for a specification that says it is Pendulum Tested to BS-7976-2 or the latest Floor Testing Standard EN-16165 and that it achieves 36 PTV (Pendulum Test Value) when tested WET. Note that a DRY reading is irrelevant (basically useless) as 95% of slips occur on WATER WET (rain, snow) or WET Contaminated floors, like beer or tomato sauce or cooking oil etc.)
FloorSlip can conduct On-Site Floor Testing or Off-Site Floor Samples Pendulum Testing for you to determine the PTV (Pendulum Test Value) - Contact FloorSlip Today