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Tag Archives: ASTM C1028

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was formerly used to measure the slip resistance of a wet floor in the USA, but the test method (ASTM C1028) was withdrawn by the ASTM in 2014.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

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 Although this test is a much better test than the now-withdrawn ASTM C1028 that was previously included in the International Building Code, the new test method comes with a great deal of “disclaimers”, including the warning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 […]

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 […]

No More Slips in Supermarkets!

Today, over 99 percent of supermarket floor areas are slippery when wet or otherwise lubricated. The lubricants may be water from tracked-in rain and snow; vegetable display sprays or a dripping ice bag; WD-40 from a customer’s test of a spray can; cooking oil; milk; or a very large variety of other liquids and solids. […]

Article published in The Construction Specifier magazine talks slip resistance

John C. Sotter and George Sotter of Safety Direct America were published in the July issue of The Construction Specifier magazine with an article talking about floor slip resistance and keeping floors safe for pedestrians. The article talks about the latest International Building Code (IBC) requirements for slip resistance, and its limitations as far as […]

Video Explains IBC Requirements for Floor Slip Resistance

The 2012 International Building Code changed slip resistance requirements for indoor floors that may get wet in use. The previously-used ASTM C 1028 friction test method is obsolete, and testing using the AcuTest method in ANSI A137.1 slip test must show a minimum of 0.42 wet dynamic coefficient of friction — but many other factors […]

OSHA’s “Suggestion” for Minimum Floor Coefficient of Friction (COF)

We often hear the question, “What does OSHA require for floor slip resistance?” The answer is that OSHA doesn’t require anything, but nevertheless has caused a lot of confusion for employers and the public on this subject. There has never been an official OSHA slip test or safety standard for flooring. In a nonmandatory appendix […]

How to Prevent Slips and Falls on a Swimming Pool Deck

Unfortunately, many swimming pool decks are slippery when wet as installed! This can and too often does lead to severe accidents for both children and adults. The deck that was supposed to supply fun for the family, club members, or the public becomes a liability that causes pain, suffering, expensive medical treatment, and income losses. […]

When Should You Test Flooring for Slip Resistance?

Many building owners find themselves in trouble after a refurbishment or new build, because the flooring is unexpectedly slippery when wet. An entrance lobby, restroom, pool deck, spa, or factory floor are common locations where this problem occurs. When should flooring be tested for slip resistance? Some architects might say, “Never.” Many lawyers might say, […]

Does ANSI Tile Spec A137.1 help protect you from liability for slipping accidents?

If you specify or buy flooring based on a minimum wet dynamic coefficient of friction of 0.42, you may be vulnerable to charges of negligence if a slipping injury occurs on that floor. Here we tell you why, and how to avoid the situation. American National Standards Institute (ANSI) issued its standard A137.1, “Specifications for […]