Last week I discussed the four commonly used anti-slip tests in the industry: the Coefficient of Friction (CoF), Floor Surface Roughness (Rz), the R rating and the ABC rating. In this mail I'll show how the different measurements can be compared so that you, as a tile sales person can advise your customers to select tiles that are suitable for their application.
'R' Rating Ramp test & ABC ratings - Wet areas.
The resistance level, or ‘R’ rating, is the classification used by professionals to advise on whether a tile should be applied in a typically wet environment (like a pool surround) or is best in other low risk areas (like a kitchen) and takes into consideration the highest angle in which it remains safe, by measuring on a ramp.
Also taken into consideration is the tiles safety when walked on barefoot. Rather than an ‘R’ rating this is measured alphabetically, with ‘A’ being the least resistant and ‘C’ the most. Again these are tested to the limits through a ramp measuring system.
The two testing methods overlap and can be better explained in the table below.
R ratings and angles are in red, ABC ratings and angles are in blue.
Classification | Angle ⁰ |
Classification
| Angle ⁰ |
Application
|
R9 | 6⁰ < 8⁰ | | | Domestic hallway/living room |
R10 | 10⁰ < 19⁰ | A | 12⁰ < 17⁰ | Domestic bathroom/kitchen |
R11 | 19⁰ < 27⁰ | B | 18⁰ < 23⁰ | Public toilet/dressing room |
R12 | 27⁰ < 35⁰ | C | > 24⁰ | Public showers |
R13 | > 35⁰ | | | Swimming pools/saunas |
Pendulum Test
The pendulum test determines the tile from safe to dangerous and tests through a weighted swinging arm and its resistance once in contact with the tile. It is measured in a ‘SRV’ rating, which stands for Slip Resistance Value. This rating is used by Health and safety professionals.
SRV Pendulum Test Result
|
Slip Potential
|
Rating
|
Application
|
0 – 24 | Dangerous or high potential for slipping | Dangerous | Most domestic settings |
25 – 35 | Marginal or moderate potential for slipping | Moderate | Public toilets/foyers |
36 – 65 | Safe or low potential for slipping | Safe | Swimming pools |
66 + | Very safe or extremely low potential | Very Safe |
Next is a very simple R rating diagram. The shoes indicate what types are relatively safe at each rating.
Enquire about our anti-slip tiles with R11+ ratings.