![]() The methane gas burners deliver the metered test flame upward against the surface of the. A regulated induced draft system provides for the movement of air and products of combustion within the tunnel furnace. ![]() Conclusion: An ASTM E84 tunnel test requires a 24-inch-wide x 24-foot-long conditioned sample mounted inverted on the ceiling under a removable lid. Data: The size of the test specimen Width: between 20 and 24 in. dog kennel clamps Video 01: ASTM E84 Steiner tunnel chamber Specimen size: The specimen is representative of the materials. 2) The sample material is exposed to controlled air. 1) A sample material is mounted in ceiling position, facing downward in a chamber. Conclusion: American Society for Testing and Materials E84 Test (ASTM E84) Acoustical foam's fire retardancy rating is measured by its Flame Spread Index (FSI) and Smoke Developed Index (FDI) both assessed in ASTM E84. Video 01: ASTM E84 Steiner tunnel chamber Specimen size: The specimen is representative of the materials.
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