FTT Oxygen Bomb Calorimeter


The bomb calorimeter is a widely used device for measuring the heat of combustion or calorific value of a material.With this apparatus a test specimen of specified mass is burned under standardised conditions.The heat of combustion determined under these conditions is calculated on the basis of the measured temperature rise while taking account of heat loss.


The combustion process is initiated inside an atmosphere of oxygen in a constant volume container, the bomb, which is a vessel built to withstand high pressures. It is immersed in a stirred water bath, and the whole device is the calorimeter vessel.The calorimeter vessel is also immersed in an outer water bath.The water temperature in the calorimeter vessel and that of the outer bath are both monitored.


EN ISO 1716: Reaction to fire tests for building products – Determination of the heat of combustion


ISO 1928: Determination of gross calorific value by the bomb calorimetric method and calculation of net calorific value


ASTM D 240: Standard test method for heat of combustion of liquid hydrocarbon fuels by bomb calorimeter


ASTM D 4809: Standard test method for heat of combustion of liquid hydrocarbon fuels by bomb calorimeter


ASTM D 5468: Standard test method for gross calorific and ash value of waste materials


ASTM D 5865: Standard test method for gross calorific value of coal and coke


ASTM E 711: Standard test method for gross calorific value of refuse-derived fuel by the bomb calorimeter


The FTT Oxygen Bomb Calorimeter is a versatile instrument and can be used to measure the heat generated from several applications and has been designed to conform to current ASTM, ISO, EN, BS and DIN standards.


The calorific value of the following groups of materials can be measured: - 


Building materials (EN ISO 1716)  Coal, coke (ASTM D 5865)





Fuel (ASTM D 240: gasoline, kerosene, fuel oil, No’s 1-D and 2-D diesel fuel and No’s 0-GT, 1-GT, and 2-GT gas turbines fuels and ISO 1928)


 Fuel derived from waste material (ASTM E 711)  Hydrocarbon fuels (ASTM D 4809)


 Food, supplements, crops  Waste and refuse  Chemical and pharmaceutical samples


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