Tag Archives: AcuTest

Fool Me Once: The Floor Slip Resistance Testing Misinformation Campaign Fooling the USA

We’ve all heard the old adage, “Fool me once, shame on you; fool me twice, shame on me.” The Tile Council of North America (TCNA), who reportedly is “in partnership” with at least one of America’s largest tile manufacturers, spent almost two decades promoting the misinformation that the ASTM C1028 static coefficient of friction (SCOF) […]

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2022 Revised ANSI A326.3 Has Five Situation-Specific DCOF Minimums — And Crucial Caveats

In February of 2022, the American National Standards Institute (ANSI) issued a revised version of their “Test Method for Measuring Dynamic Coefficient of Friction of Hard Surface Flooring Materials.” Situation-specific recommended minimum DCOF values range from 0.42 to 0.55. As in previous versions, this one has important caveats. E.g., “The specifier shall determine materials appropriate […]

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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(SCOF) was formerly used to measure the slip resistance of a wet floor in the USA, but the test method (ASTM C1028) was withdrawn by the ASTM in 2014.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 […]

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 […]

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DCOF Rating for Floors

The latest American slip test for floors is the DCOF rating test method specified in ANSI A326.3. Although this test is a much better test than the now-withdrawn ASTM C1028 that was previously included in the International Building Code, the new test method comes with a great deal of “disclaimers”, including the warning that a […]

A Caveat about Dal-Tile’s Situation-Specific Minimum DCOF AcuTest Values

This blog has previously praised Dal-Tile for recognizing that “one size fits all” does not work when it comes to slip resistance standards (or bikinis, for that matter). For instance, Dal-Tile has recommended a minimum ANSI A137.1 DCOF AcuTest wet dynamic coefficient of friction of 0.60 for swimming pool decks, public showers, and locker rooms. […]

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Why We Offer a “Recommended Tile Slip Test Package”

When our clients ask for an ANSI/NFSI A137.1 test we often recommend that they order a pendulum test as well. The pair of floor slip resistance tests is popular, and we offer a discounted price of $387.00 (for lab testing) when they are ordered together. The reason has to do with the A137.1 standard — […]

Dal-Tile Recommends Situation-Specific Minimum DCOF AcuTest Values

We have pointed out before that the ANSI A137.1 “DCOF AcuTest” and ANSI A326.3 minimum recommended wet dynamic coefficient of friction (DCOF rating) for level wet indoor areas of 0.42 is “one size fits all” and does not consider the use of the flooring — upstairs elevator lobby, commercial kitchen, pool deck, etc. The traction […]

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