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Last Updated: Nov 13, 2025
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ASTM F3781-25
Standard Test Method for Measurement of the Fracture Resistance of a Modular Resilient Flooring’s Profiled Edge(s) to an Applied Vertical Force
Standard Test Method for Measurement of the Fracture Resistance of a Modular Resilient Flooring’s Profiled Edge(s) to an Applied Vertical Force
F3781-25
ASTM|F3781-25|en-US
Standard Test Method for Measurement of the Fracture Resistance of a Modular Resilient Flooring’s Profiled Edge(s) to an Applied Vertical Force
Standard
F3781 Standard Test Method for Measurement of the Fracture Resistance of a Modular Resilient Flooring’s Profiled Edge(s) to an Applied Vertical Force>
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BOS Vol. 15.04 Committee F06
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ASTM International
Significance and Use
4.1 Modular flooring having profiled edges, installed as a floating floor can provide a quick and easy installation system. The product is held together by the interlocking profiled edges. If the profiled edges are too brittle, over flexed, etc. they can be susceptible to fracture, which can then allow the modular panels (planks or tiles) to cause ledging and gapping with adjoining tiles/planks. Too soft or too flexible, the profiled edges might come unhinged. This test method provides a means of characterizing the vertical deflection strength of the profiled edges of modular flooring, by applying a vertical load to the profiled edge to see if fracture or over flexing occurs. This test method may correlate to the type of vertical fracture that can occur with ISO 4918 castor chair test method used to evaluate lock integrity of an assembled modular flooring.
Scope
1.1 This test method covers the fracture resistance of the profiled edges of modular flooring due to an applied vertical force at a given rate of speed, until initial fracture occurs.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.