IMO Spread of Flame    ISO 5658-2, IMO A 653(16), ASTM E1317 and ASTM E1321    Reaction to fire
This method of test is used to assess the propensity of surfaces of materials to support and spread flame. The sample is tested in a vertical orientation with a radiant gas panel inclined to the surface of the material. In the IMO test a heat release stack has been added to enable the simultaneous assessment of heat release rate. Features Solid robust welded steel framework housing the following: Gas panel constructed of porous refractory tiles in a stainless steel housing, mounted on a on the framework on a rotating steel ring Gas Panel can use natural gas, methane or propane mixed with air prior to entry to the panel Incorporates a dual gas safety shut off system Variable area calibrated flowmeters are incorporated in the supply pipework allowing gas and air supplies to be controlled and monitored Pressure governors, control and shut-off valves for the gas and air Safety flame arrestors on pilot burner system An adjustable pilot burner using acetylene/air mixture is used for the pilot flame A heat release stack is mounted on the specimen support framework directly above the test specimen complete with specially manufactured type K thermocouples and positioning frame Three specimen holders Three spring-loaded action clamp One dummy specimen Three specimen backing boards Calibration board of calcium silicate based material with a series of holes for positioning the heat flux meter at the prescribed calibration locations, together with plugs for the hole positions not in use during calibration Specially calibrated water-cooled Schmidt-Boelter heat flux meter with calibration certificate Thermocouple conditioning device for the heat release stack showing compensated signal and allowing connection to logger or recorder Optional Extras Line burner - used to calibrate the heat release stack [relates to IMO Res A.653(16)] Air blower to provide an air supply at 9 litres/sec Software package and data acquisition system to record outputs (not including PC) Services required Air at 9 litres/sec Gas - natural gas or methane supply Acetylene supply Electrical Supply - 230V/50Hz or 120V/60Hz
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FIRE Instrumentation & Research Equipment
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