Wet Pendulum Testing
WammaLab Pendulum
Wet slip resistance under specified wet conditions.
AS 4663:2013
Acknowledgement of CountryPrime Safety & Compliance Services Pty Ltd acknowledges the Traditional Custodians of the lands on which we live and work. We pay our respects to Aboriginal and Torres Strait Islander Elders past, present and emerging, and recognise their continuing connection to land, waters and community.
On-site wet pendulum, dry floor friction and combined testing for existing pedestrian surfaces across Perth, regional Western Australia and interstate by arrangement.

Perth metro · Regional WA · Interstate by arrangement
Monday–Sunday: 7:00am–7:00pm
Independent on-site slip resistance testing for existing pedestrian surfaces across Perth and Western Australia using wet pendulum and dry floor friction methods.
Prime Safety provides independent on-site slip resistance testing for pedestrian surfaces. We assess wet and dry conditions using the applicable method and agreed scope, then document the test locations, conditions, measured results and relevant classifications in a clear report.
WammaLab Pendulum
Wet slip resistance under specified wet conditions.
AS 4663:2013
Tortus 3
Dry floor friction assessment for existing pedestrian surfaces.
AS 4663:2013
Wet Pendulum + Tortus 3
Used where the agreed scope requires evidence across both conditions.
AS 4663:2013
Plain-language answers to the questions buyers commonly ask before booking.
Slip resistance testing measures the frictional characteristics of pedestrian surfaces under specified test conditions. Prime Safety provides on-site wet pendulum and dry floor friction testing for existing pedestrian surfaces in accordance with AS 4663:2013.
Wet pendulum testing assesses slip resistance under specified wet conditions. Dry floor friction testing using the Tortus 3 assesses a surface under specified dry conditions. One method does not automatically replace the other.
AS 4663:2013 applies to the on-site measurement of existing pedestrian surfaces. AS 4586 relates primarily to the classification of new pedestrian surface materials.
Prime Safety is an independent testing provider and is not itself a NATA-accredited laboratory. Our wet and dry slip-testing equipment is calibrated by ISTS, a NATA-accredited laboratory.
Request a quote and tell us what needs to be assessed. We'll confirm the appropriate scope, access requirements and timing.