Both the MT and the HT Mats were tested for slip resistance in both the wet and dry using internationally recognised test methods. These test methods produce a classification and depending on that classification will depend on the level of slip resistance (or safety) the product provides.
As detailed below Skudo needed to secure a V rating in order to receive
the highest possible rating for Wet Slip resistance. That rating needed
to secure a figure above the pendulum mean of 54. Both the MT and the
HT surpassed that figure significantly recording and incredibly high
59 and 60 respectively. Equally for the Dry Slip Resistance, the Skudo
Mats needed to receive a dynamic coefficient of friction mean equal
to or higher than 0.40. Skudo Mats registered an incredible 0.80 and
0.85 respectively giving them a safety rating double that of the highest
rated figure.
THE RESULTS:
Wet Pendulum test - MT mean 599 or V Classification
Wet Pendulum test - HT mean 600 or V Classification
Dry Floor Friction test - MT mean 0.800 or F Classification
Dry Floor Friction test - HT mean 0.8555 or F Classification
ABOUT THE TESTS:
Skudo commissioned two main tests from ATTAR – a NATA Accredited facility, The Wet Pendulum Slip Resistance Test, and the Dry Floor Friction Slip Resistance Test. The wet pendulum slip resistance test (AS/NZS 4586 Appendix A) is generally conducted using a Wessex or Munro - Stanley London Pendulum Friction Tester. This pendulum device is portable and consists of a weighted foot with a test slider that swings down and slides across the surface wetted with water. The weighted foot comprises a spring-loaded rubber test slider that exerts a prescribed force over the specimen as it slides across the surface. The results of expressed as a British Pendulum Number (BPN) and classified according to AS/NZS 4586 as shown in the table below:
|
Pendulum
Mean BPN |
AS/NZS
4586 Classification |
AS/NZS
4663 Notional*
contribution of the floor surface to the risk of slipping when
wet |
|
|
Four
S |
TRL |
||
|
>
54 |
>
44 |
V |
Very
Low |
|
45-54 |
40-44 |
W |
Low |
|
35-44 |
n/a |
X |
Moderate |
|
25-34 |
n/a |
Y |
High |
|
<
25 |
n/a |
Z |
Very
High |
The
dry floor friction slip resistance slip test (AS/NZS 4586 Appendix B)
uses a battery operated machine commonly referred to as the "dry
FFT" a or "Tortus". The dry FFT measures the force opposing
the motion of a 9 mm diameter test slider of Four S rubber as it moves
across the surfaces at a constant speed of 1m/min. The average of two
measurements of 800 mm is taken and the results are expressed as Coefficient
of Friction (CoF). The coefficient of friction is a ratio of the horizontal
and vertical forces and the slip resistance test results are classified
as follows:
|
Floor
friction tester mean value |
AS/NZS
4586 Classification |
AS/NZS
4663 Notional*
contribution of the floor surface to the risk of slipping when
dry |
|
=
0.40 |
F |
Moderate
to very low |
|
<
0.40 |
G |
High
to very high |
|
|
|
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