The standard ASTM test method, D-3574 Test E-Tension Test, for flexible polyurethane materials has been automated by integration of a video imaging system, a personal computer, and a laboratory scale robot. The manual cellular polyurethane foam tensile test measurements, stress and ultimate elongation, have been replaced with a sample handling/preparation robot and non-contacting video measurement of sample elongation. This automated application has eliminated a significant amount of the manual labor while accommodating a large sample demand.
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References
1.
1. 1995. "Designation: D3574-Standard Test Methods for Flexible Cellular Materials-Slab, Bonded, and Molded Urethane Foams,"1995 Annual Book of ASTM Standards, Volume 09.02, Philadelphia, PA: American Society for Testing and Materials.
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2. 1993. Instron Non-Contacting Video Extensometer for Use with 5500 Series Load Frames and Merlin Software, Canton, MA: Instron Corporation.
