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ISO 5658, ASTM E 1317 IMO Spread of Flame Tester
Introduction:Heat for sustained burning (MJ/m2)
- It is gained by multiplying time, which ranges from the initial exposure of test object to arrival of flame-tip in each point, by radiant heat flow penetrated against nonflammable calibration panel in the same point.
Average heat for sustained burning (MJ/m2)
- It is an average of characteristic values measured in individual positions by continuous sustained heat. The characteristic value is measured in continuous position at an interval of 50 mm from the initial 1500mm to the final position or 400 mm, whichever is lower.
Heat for ignition (MJ/m2)
- It is gained by multiplying time, which ranges from the initial exposure of test object to arrival of flame-tip in a point of 150 mm, by heat flow of this point. (However, heat flow is gained by pre-calibration of test equipment.)
Critical flux at extinguishment (kW/m2)
- It means heat flux in the location where flame spreads to the farthest distance from the center line of combustion test object. The heat flow is gained by performing calibration test of tester using calibration panels.
Total heat release (MJ)
- It means total heat release during test period.
Peak heat release rate (kW)
- It means peak heat release rate during test period.
1. Rail for easily measuring heat flux of radiant panel at an interval of 50mm.
2. IMO Program to facilitate all calibrations and tests as well as to printout of results by standards (IMO, ISO).
3. Radiant panel temperature controller: Equipment to prevent flame back toward the backside of Radiant panel, check the internal temperature of the radiant panel and automatically block gas sol. v/v in case of flame back-flow.
4. MFC (Mass Flow Controller) to easily measure the heat amount of methane gas in measuring critical heat flux.
5. Explosion-proof options of all control systems for safety in combustion in the radiant panel as well as Check-Valve and its Gas shut-off valve (Solenoid Valve) to prevent back-flow in the gas line.
6. Camcorder to observe and save test conditions in a program during tests.