Floor coefficient of friction (COF) testing is the measuring of the slip resistance of a flooring surface. The static coefficient of friction (SCOF) is the force required to start an object moving relative to the surface, divided by the weight of the object on the floor. It is a measure of the resistance to sliding […]
Tag Archives: COF test
Abandoned, Withdrawn and Flawed Floor Slip Resistance Test Methods Continue to Plague the USA
Slip and fall accidents can have serious consequences, leading to injuries and even fatalities. That’s why it’s crucial to ensure the safety of floors, particularly in public areas such as shopping centers, hotels, and hospitals. However, not all floor slip resistance testing techniques are created equal, and some American tests have even been withdrawn or […]
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 […]
New Study Shows Sotter Engineering to be one of World’s Most Accurate Pendulum Floor Slip Test Labs
A recent global interlaboratory program “Slip Resistance Proficiency Testing — Pendulum Friction Tester,” showed Sotter Engineering Corporation’s Safety Direct America (SDA) floor slip resistance testing laboratory to be one of the world’s most accurate in use of the pendulum skid tester. The pendulum is a national standard for pedestrian floor and tile slip resistance testing […]
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 […]
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 Although this test is a much better test than the now-withdrawn ASTM C1028 that was previously included in the International Building Code, the new test method comes with a great deal of “disclaimers”, including the warning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 […]
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 $414.00 (for lab testing) when they are ordered together. The reason has to do with the A137.1 standard — […]
Slip Resistance of Basketball and Volleyball Floors
Floors for indoor sports (basketball, volleyball, gym, etc.) need careful attention to their dry slip resistance. Players must have enough traction to start and stop quickly, yet not so much that they can’t pivot rapidly. Fortunately, there are well-defined and long-accepted standards for the slip resistance of these floors, using the pendulum skid testing instrument […]
Slip Resistance of Floor Graphics
The September/October 2016 edition of SGIA Journal (Special Graphic Imaging Association), pp 89–92 has an article, “New Slip Resistance Specifications — Are You in Compliance?”, by the Marketing Manager of Mactac Distributor Products (“Technology that Sticks”, including indoor and outdoor floor graphics). He discusses the following about American National Standards Institute (ANSI) Standard B101.3: […]
Cofficient of Friction and Probability of Slip
Analysis published many years ago by Pye of Britain’s Building Research Establishment quotes the probability of a slip (not a fall or injury) as varying with the coefficient of friction (COF) between the shoe and floor as follows: COF Risk, 1 in … 0.40 1,000,000 0.38 100,000 0.34 10,000 0.31 […]