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View English XL and Mark IIIB Floor Friction Data with Suspicion

A recent paper published by Siegmund et al. called “Quantifying the uncertainty in tribometer measurements on walkway surfaces” states that data from the English XL and Brungraber Slip-Test Mark IIIB are “less accurate than they appear.” This is in part because the user is “a key component to the system,” influencing the numerical outcome of […]

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Polished Floors Are Slippery When Wet – No Matter What Your American-Made Slip Resistance Test Device Says!

Reliable floor slip resistance test devices include the pendulum floor slip resistance tester and the SlipAlert Tribometer (now known as the iAlert), which both measure the dynamic coefficient of friction (DCOF) of floors. In the United States of America, we have in the past (and present) allowed tile manufacturers and people who make their living […]

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Myth Busted: More Grout Lines Does Not Make a Floor More Slip Resistant

There’s a myth that tile manufacturers (especially manufacturers that sell tiny tiles) want you to believe, but it’s just a myth. There’s no science or proof behind the statement that more grout lines makes a floor safer. More grout lines doesn’t actually add any slip resistance to a floor with tiny slippery tiles on it, […]

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The Importance of Reliable Floor Slip Resistance Testing

Floor slip resistance testing is an essential process for ensuring safety in public spaces, workplaces, and homes. It helps to identify the level of slip resistance (or COF) of a floor surface, which is crucial in preventing injuries resulting from avoidable slips and falls. The most common floor slip resistance testing technique around the world […]

America’s Floor Slip Resistance Testing Experts

We’ve tested flooring for the dynamic coefficient of friction (DCOF) and slip resistance all over North America and beyond for around 1,000 individual clients so far as America’s leading independent third-party certified floor friction test lab. We don’t lie in court for slip and fall lawyers (like those who mainly use the Brungraber Mark IIIB, […]

How to Get The Slip and Fall “Expert” Witness Testimony from an English XL VIT and Brungraber Mark IIIB User Thrown Out of Court

Slip and fall “expert” witnesses in the United States typically use either the English XL Variable Incidence Tribometer (VIT) or the Brungraber Mark IIIB, which is incredibly frightening considering that neither of these two instruments have a published, peer-reviewed test method in any country on earth, and both (the English XL and Brungraber Mark II, […]

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Can a Floor be Too Slip Resistant?

As floor slip resistance testing experts with decades of experience, we’re sometimes asked if a floor can be too slip resistant, usually by someone who is trying to sell a flooring that is likely too slippery for a particular application. The answer, put simply, is no. There is no such thing as a floor that’s […]

A Review of Standards for Pedestrian Slip Resistance Testing

There are a number of floor slip test methods established by standards-setting organizations that assess pedestrian slip resistance. Here we’ll review the most widely known and current ones. They are distinguished by the devices used in the testing. Terms such as DCOF rating, coefficient of friction, slip coefficient, slip resistance rating, and friction coefficient all […]

The Crooked Expert Witness

Too often litigation is influenced by testimony from an “expert witness” who is “crooked as a hound dog’s hind leg.” More than a century and a half ago, English judges started complaining about the lack of independence and objectivity when hearing expert evidence. That lament was aptly illustrated in the case of Lord Arbinger v […]