New Natural Stone Institute Technical Bulletin
Since the withdrawal of the ASTM C1028 test method for Static Coefficient of Friction, the stone industry has been without a standard test protocol for the measurement of friction for walking surfaces. The Natural Stone Institute has completed an exhaustive study on the use of the ANSI A326.3 Standard Test Method for Measuring Dynamic Coefficient of Friction of Hard Surface Flooring Materials test procedure on natural stones. Over 300 stone specimens (51 stone types in six different finishes) were tested to evaluate the appropriateness this test method for natural stone products.
The Natural Stone Institute would like to thank Miller Druck Specialty Contracting, Artistic Tile, Coldspring, Tennessee Marble Company, and TexaStone Quarries for their assistance in procurement of test specimens.
To access the document, please visit www.naturalstoneinstitute.org/resourcelibrary.
About the Natural Stone Institute
The Natural Stone Institute is a trade association representing every aspect of the natural stone industry. The current membership exceeds 2,000 members in over 50 nations. The association offers a wide array of technical and training resources, professional development opportunities, regulatory advocacy, and networking events. Two prominent publications—the Dimension Stone Design Manual and Building Stone Magazine—raise awareness within the natural stone industry and in the design community for best practices and uses of natural stone. Learn more at www.naturalstoneinstitute.org.