You will find below a description for the most common anti-slip test, the Ramp Test. It should be noted that in order to get a reliable measurement of slip resistance, testing of tiles should be undertaken at competent test houses. All site testing should include an "as found" measurement and an "after thorough cleaning" measurement as there are several factors which will affect the slip resistance of a tile once it has been installed, such as the build up of organic and unorganic matter on the surface of the tile, the cleaning and maintenance regime, durability and wearing properties, and exposure to wet to name a few.
RAMP TEST
- A lubricated, inclined platform is adjusted to a gradually increasing gradient, and the angle is measured at which the person walking on it slips.
- The tiles have to be fixed and grouted onto the platform and the operator needs to be experienced in the test in order to get results that can be replicated.
- There are 2 test methods conforming to DIN Standards.
DIN 51097 The operator is barefoot and the lubricant is water
Barefoot test results are quoted as a letter rating which relates to the ramp angle as detailed below:
A rating = 12 - <18 degrees
B rating = 18 - <24 degrees
C rating = >24 degrees
Failure to achieve 12 degrees means that no rating can be given
DIN 51130 The operator is shod with rubber soled boots and the lubricant is engine oil
Shod test results are quoted as an R value which relates to the ramp angle as below
R9 = 3 - <10 degrees
R10 = 10 - <19 degrees
R11 = 19 - <27 degrees
R12 = 27 - <35 degrees
R13 = >35 degrees
These values should not be taken to imply safe use when fixed on ramps at these angles. These are merely conditions of testing and the angles to not refer to conditions of use.
Further details on the other anti-slip tests can be found in our publication Technical Guide to the specification of floor & wall tiles. To request a copy, email us at enquiry@armatile.com. 
back
