IMO is used to evaluate combustion characteristics of building materials and ship materials and measures spread rate of flame, flame for ignition by distances, CFE (Critical Flux at Extinguishment) and total heat release.
This test method is originated from ISO 5658-2 (Reaction to fire tests–Spread of flame- Part 2 Lateral spread on building products in vertical configuration) and measures combustion characteristics of vertical specimen (155mmX800mm).
The specimen is exposed to the reasonable radiant heat field and is measured by thermocouple for exhaust gas calibrated through the progress of combustion as unit of mV.
IMO records the spread rate of flame after this records ignition and extinguishment time of flame for each distance of specimens. And the other test results is Heat for ignition (MJ/㎡), Heat for sustained burning (MJ/㎡), Critical flux at extinguishment (kW/㎡), Average heat for sustained burning (MJ/㎡), Total heat release (kW) and so on.

Reference Standards:

ISO 5658-2: Reaction to fire tests –Spread of flame - Part 2 Lateral spread on building products in vertical configuration;
IMO Resolution A. 653(16): Recommendation on fire test procedures for flammability of bulkhead, ceiling and deck finish materials;
ASTM E 1317: Standard test method for flammability of marine surface finishes;

Specifications:

Rail for easily measuring heat flux of radiant panel at an interval of 50mm;
IMO Program to facilitate all calibrations and tests as well as to printout of results by standards (IMO, ISO);
Radiant panel temperature controller: Equipment to prevent flame back toward the back side of Radiant panel, check the internal temperature of radiant panel and automatically block gas sol. v/v in case of flame back-flow;
MFC (Mass Flow Controller) to easily measure the heat amount of methane gas in measuring critical heat flux;
Explosion-proof options of all control systems for safety in combustion in radiant panel as well as Check-Valve and its gas shut-off valve (Solenoid Valve) to prevent back-flow in gas line;
Camcorder to observe and save test conditions in a program during tests;
Exhaust: 0.01 ㎥/s;
Size: 1650*810*1985mm, 300kg;
Power supply: 220 V AC, 60 Hz, 10 A;
Gas source: Propane Gas, Methane Gas, Acetylene Gas, Compressed Air;