AstmeE84 Steiner Tunnel Testing Machine Fire Test Lab Testing Equipment UL910

ASTME84 Standard Scope:
The ASTM E84 Standard Test Method for Surface Burning Characteristics of Building Materials is one of the building codes' most frequently specified standard test methods. Test and evaluate your building product for compliance with building code requirements with ICC NTA.

ASTM E84 standard applicable products:
Building materials, wallpaper, insulation materials, panel products, paints, adhesives, sealants and coatings, interior decoration.

ASTI E84 fire rating classification:
ASTM E84 Class is 0-25 mesh smoke index not exceeding 450.
ASTM E84 Class B is 26-75 day smoke index not exceeding 450.
ASTM E84 Class C 76-200 day smoke index not exceeding 450.

ASTm E84 test method for surface burning characteristics of building materials:
1.ATM E84 test is carried out by placing a 24-inch wide x 24-foot long sample into Stan's tunnel, where the test is carried out by using two burners that provide 89 energy. During the 10-minute test, the sample is installed under a removable cover on the ceiling and forced ventilation is provided so that air and combustion products move in the tunnel and enter the exhaust/scrubber system.
2. The fire spread index (RS1) is calculated based on the data recorded by the window of the ventilation room, and the computer software records the flame spread curve during the test (0 minutes). The flame spread curve is calculated based on the data recorded by the photometer system. The photometer system consists of a light source, a photoelectric tube and a special electronic device. The light passes through the ventilation room, and the computer software records the light obstruction when the light passes through the beam path during the test. The smoke area under the smoke curve is used to calculate the smoke generation index.
4: Flame propagation refers to the development of flames on the surface of materials. It is related to the fire signal and the combustible material to expand the fire. The flame propagation performance is often tested by enzyme method and radiation plate method. This ASTHE84: method is used to determine the flame propagation rate of building materials (determination of field concentration), according to ASTMB84.
The equipment used in the ASTIE84 tunnel method is a steel trough lined with refractory bricks with a length of 7.62m and an open end cross-section of 0.45m*0.30m, with windows on the side of the trough.

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