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DID YOU KNOW THE ASSEMBLY OF YOUR PRODUCT COULD BE A QUARTER TURN AWAY FROM A MAJOR RECALL?

PEAK INNOVATIONS ENGINEERING HAS THE HIGHLY TECHNICAL TEAM TO DESIGN, TEST, VALIDATE, AND ENHANCE THE BOLTED JOINTS WITHIN YOUR PRODUCT APPLICATION.

Joint development and testing is all we do, so we do it better than other internal and external options. Why consume your resources when we can take care of it for you quickly, definitively and cost effectively?

WHY OUTSOURCE JOINT TESTING?

Peak innovations Engineering is an ideal choice for joint testing and development. By relieving your engineers of joint testing, they can focus on engineering improvements increasing revenue and sales. Our experience and expertise allows us to optimize joints, propose cost reduction of labor and material and troubleshoot poor yield.

WHY USE PEAK?

Peak innovations Engineering offers independent third-party fastener, joint or equipment testing. Our in-house lab accommodates immediate testing of proposed designs or changes. Peak’s specialized testing can optimize your process parameters including; torque, force, time, etc. Many of our tests can be performed at the customer’s location if requested.

Measuring Footwear Slip Resistance Using A COF Tester

Mar 3, 2021 | Blog Posts, COF Tester

Designing safety footwear that reduces the risk of slips, trips, and falls should be a key objective for footwear manufacturers. At the time of this writing, no U.S. government agency mandates performance specifications, nor is there any industry consensus defining slip resistance for PPE footwear in the US. That’s astonishing when one considers that OSHA states that slips, trips, and falls constitute the majority of general industry accidents, cause 15 percent of all accidental deaths, and are second only to motor vehicle accidents as a cause of fatalities. Because there are so many factors that affect slips, trips, and falls, a major area of developmental focus for manufacturers is to assess the coefficient of friction (COF) for footwear under laboratory settings for several different conditions.

A COF, on the other hand, is the ratio of the frictional force between two bodies and the force pressing them together. The focus on coefficients of friction to assess slip resistance stems from the fact that the COF and the force required to slide an object are directly proportional — the greater the COF, the greater the resistance to sliding measured by a COF tester.

Using a COF Tester in Measuring Slip Resistance of a Footwear

Determining a COF means using a COF tester to calculate the frictional force ratio between two objects and the force pressing them together. Coefficients of friction can be measured using a COF tester. Static coefficients of friction measure how much force is required to move a stationary object; dynamic or kinetic coefficients of friction are a measure of how much force is required to keep a sliding object sliding. Because most slips occur during walking, a key factor in designing slip-resistant footwear is testing that can accurately measure the dynamic COF under various conditions. The historical lack of a performance specification establishing a minimum COF for footwear has not been due to the inability to calculate a COF or lack of trying. The ASTM has introduced (and then withdrawn) test methods that attempted to standardize the process and ensure reproducibility. Rather the problem has been the inability to assess a dynamic COF, accurately and precisely, with repeatability from one laboratory to another.

ASTM Standard 2011

In 2011 the ASTM published F2913-11, Standard Test Method for Measuring the Coefficient of Friction for Evaluation of Slip Performance of Footwear and Test Surfaces/Flooring Using a Whole Shoe Tester. It is the latest standard test method on this topic and provides an excellent means of assessing dynamic coefficients of friction, and by extension, for ultimately producing slip-resistant footwear. Unlike prior methodologies, ASTM F2913-11 determines the dynamic COF between footwear and floor contaminants under reproducible laboratory conditions. It applies to all types of footwear, to most indoor floorings, and it allows testing of various flooring surface contaminants.

THE PROOF IS IN THE REPORTING!

Critical analysis of the testing data and subsequent reporting is our brand signature.

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