ANSI A326.3
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Floor Slip Resistance Testing: Why ANSI A326.3 DCOF Should Not Be Used as a Floor Safety Assessment When a floor is tested for slip resistance, the most important question is simple: Does the test result meaningfully identify whether the floor presents a high, medium, or low potential for pedestrian slipping? A floor slip resistance test…
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In the United States, a serious misunderstanding has taken hold in the flooring industry. Many architects, attorneys, insurers, manufacturers, and even safety consultants believe that the BOT-3000E tribometer determines whether a floor is “safe.” It does not. And the standard behind it — ANSI A326.3 — clearly says so. What ANSI A326.3 Actually Says ANSI…
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Slip-and-fall incidents remain one of the leading causes of serious injury in public and commercial spaces. Because of that, the tools used to assess floor safety must be accurate, repeatable, and meaningful in real-world conditions. Unfortunately, not all slip-resistance test devices meet that standard. In the video accompanying this article, we demonstrate why the pendulum…
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2022 Revised ANSI A326.3 Has Five Situation-Specific DCOF Minimums — And Crucial Caveats Which Make This Test Inappropriate as a Floor Safety Test
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.” The test method is called ANSI A326.3, and it sets a very low bar for DCOF in various flooring areas. Slip and fall accidents will likely…
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The manufacturer of the BOT-3000E digital tribometer is Regan Scientific Instruments of Carrollton (Dallas), Texas. Recently we asked Regan for an update on ANSI B101.3, “Test Method for Measuring Wet DCOF of Common Hard-Surface Floor Materials,” approved January 18, 2012, and ANSI/NFSI B101.1. We received a reply from Peter Ermish, President. Here’s part of his…
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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…
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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…




