Fire Testing Technology Ltd

OSU Rate of Heat Release Apparatus

FAR 25.853 (a-1), FAA Fire Test Handbook – Chapter 5,
ASTM E 906 Standard Test Method for Heat and Visible Smoke Release Rates for Materials and Products

• Stainless steel insulated test chamber, with gasketed door and viewing window
• Matched set glow bars elements as heat source (with corrosion-resistant stainless steel housing)
• Dual glo-bar power controllers for ease of heat flux uniformity adjustment
• Upper pilot, lower pilot with spark ignition and calibration methane gas burners
• Thermopile for heat measurement, with five hot thermocouple junctions in chimney and five cold thermocouple
   junctions in the air chamber
• Air distribution system and exhaust stack
• Specimen holder, with pressure plate, mounting bracket and drip pan
• Stand-alone Control Unit Housed in 19" Rack, with
   - Thyrister control for radiant heat source
   - Flow control for burners
   - Controls for air supply system
• Calibration heat flux meter
• Software, interface, computer and laser printer

The unit can also be modified to comply with ASTM E 906 and to conduct tests at different incident heat fluxes, for research purposes. It can be supplied with several options: smoke measurement system (white light or laser, as in picture above), oxygen depletion calorimetry and facilities for monitoring sample mass loss continuously.

FTT also offer a data acquisition and analysis stand-alone software package for the OSU that can be used either with our instrumentation or with existing equipment.

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