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Roughness and Wet Floor Slip Resistance

We all know intuitively that roughness has a lot to do with floor slip resistance. Very smooth floors tend to have low wet slip resistance, and to some types of shoe solings (as on some dancing shoes) can have low dry slip resistance too. However, “rough” appearing floors aren’t always slip-resistant, and this has to […]

Floor Slip Rating: SCOF vs. DCOF

Static coefficient of friction (SCOF) was formerly used to measure the slip resistance of a wet floor in the USA, but the test method (ASTM C1028) was withdrawn by the ASTM in 2014. Experts in the USA now know to use dynamic coefficient of friction (DCOF), as the rest of the world has been using […]

ANSI A326.3 Acutest Does Not Predict Likelihood of Slip

A widely used floor friction test, American National Standards Institute A326.3, states in its introduction that “it can provide a useful comparison of surfaces, but it does not predict the likelihood a person will or will not slip on a hard surface flooring material.” The test assesses wet dynamic coefficient of friction (DCOF) using the […]

How does ANSI DCOF compare with Pendulum Test Value?

The most recent American National Standards Institute (ANSI) dynamic coefficient of friction (DCOF) test method, A326.3 (April 2017), states that “hard surface flooring materials suitable for level interior spaces expected to be walked upon when wet with water shall have a wet DCOF of 0.42 or greater when tested … as per this standard.” The […]

Slip Prevention in Commercial Kitchens

Commercial kitchens are food production kitchens for businesses such as hotels, cruise ships, and restaurants. Unlike your home kitchen, there are more specialized pieces of equipment such as Sous vide machines, Ice cream makers, and industrial-grade deep fryers, grills and ovens. Another important difference is that these kitchens usually have more than one person involved […]

Great Female Alpinist Charlotte Fox, 61, Dies in Fall on Stairs at Home

Charlotte Fox, the first American woman to conquer three 26,000-foot or higher mountains and who miraculously survived a blizzard while descending after summiting Everest, has died at 61 after a fall on steep hardwood stairs at her Telluride, Colorado home. Her obituary was published by the New York Times on June 8. The Everest near-death […]

What’s the Cost of a Slip and Fall on a Commercial Property?

A recent article in Risk & Insurance (May 2018, p. 32) cites some data for costs of slip and fall claims. Claims can result in a sharp increase in insurance premiums. If the property is self-insured, costs can come directly off profit. Falls among adults are the most common cause of traumatic brain injury. Commercial […]

ASTM F2508 and the pendulum slip resistance tester

ASTM F2508 is based on a rigorous scientific study of 11 tribometers (or floor slip resistance test devices) that was held at the University of Southern California Medical Center. The peer-reviewed results were published in 2010 in the Journal of Forensic Sciences. Four tiles were tested with the 11 slip test devices, and later a […]