WebAug 16, 2024 · Scope. 1.1 This test method covers a quantitative method of measuring floor surface profiles to obtain estimates of the floor's characteristic FF Flatness and FL Levelness Face Floor Profile Numbers ( F -Numbers) using the inch-pound system of units. Note 1--A complete metric companion to Test Method E1155 has been developed, … WebThis system identifies two numbers: FF (floor flatness) controls local surface bumpiness (or waviness) by limiting the magnitude of successive 300 mm (1-foot) slope changes. The other, FL (floor levelness) controls overall …
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WebFeb 1, 2009 · It also reveals that floor levelness is a measure of inclination of the floor, as compared with its design. The FL calculation begins by adding the absolute value of the z-based mean to three... WebJul 1, 2024 · Full Description. 1.1 This test method covers a quantitative method of measuring floor surface profiles to obtain estimates of the floor's characteristic FF Flatness and FL Levelness Face Floor Profile Numbers ( F -Numbers) using the inch-pound system of units. Note 1: A complete metric companion to Test Method E1155 has been … firehouse live concert
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WebFeb 12, 2024 · There are actually three F-numbers that are used for concrete floors, depending on whether the floor will have a random traffic pattern or defined traffic aisles. Flatness is determined by finishing while levelness is determined by strike-off. Dan … For higher tolerance floors (higher F-number requirements), the contractor … WebAccording to the Faceco.com website, “The F-number system is the American Concrete Institute (ACI 117) and Canadian Standards Association (CSA A23.1) standard for the specification and measurement of concrete floor flatness and levelness. F-numbers replaced older ‘1/8 inch in 10 feet’ type specs that had proven unreliable, unmeasurable ... WebFeb 17, 2009 · Testing for flatness and levelness. Thanks to its rigorous statistical approach and the highly accurate instruments typically used to … firehouse live youtube