STANDARD TEST METHOD FOR HEAT OF COMBUSTION OF LIQUID HYDROCARBON FUELS BY BOMB CALORIMETER. This test method. The heat of combustion is a measure of the energy available from a fuel. ASTM D Standard Test Method for Heat of Combustion of Liquid Hydrocarbon Fuels by Bomb Calorimeter.

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After the asttm rise period about 4 to 5 minrecord temperatures at 1-min intervals on the minute until the difference between successive readings has been constant for 5 min. Vapors may cause flash fire. A microprocessor-based controller monitors both the temperature of the bucket and the jacket and performs the necessary heat leak corrections that result from differences in these two temperatures. Its size shall be such that the bomb will be completely immersed in water when the calorimeter is assembled.

In this procedure, the combustion takes place at a constant pressure of 0.

ASTM D240-09 – International Standards

Lower or higher initial oxygen pressure can be used within the range from 2. Take calorimeter readings at 1-min intervals until the same temperature is observed in three successive readings. Evolution of heat produces a violent reaction or eruption upon too rapid mixture with water Sodium Carbonate Solution – Dissolve 3.


Pressure-Sensitive Tape – Cellophane tape 38mm 1. If purification is necessary, see A1. A knowledge of this value is essential when considering the thermal efficiency of equipment for producing either power or heat.

Avoid prolonged breathing of vapor or spray mist. It is a good choice for high precision quality control work and for research and development. Email Us or call toll-free: Either isothermal or adiabatic calorimeter jackets c240 be used.

D204 the interior of the bomb, including the electrodes and sample holder, with a fine jet of water and quantitatively collect the washings in a breaker. Under normal conditions, this test method is directly applicable to such fuels as gasoline, kerosene, Nos.

Shorter lengths may be used if the same length is employed in all tests, including standardization tests. The capsule should only be handled with forceps. Can cause severe burns or blindness. adtm

ASTM D – International Standards

Thermostatic control of room temperature and controlled relative humidity are desirable. Repeat the standardization tests after changing any part of the calorimeter and occasionally as a check on both calorimeter an operating technique. Analysis of Bomb Contents – Remove the bomb and release the pressure at a uniform rate such that the operation will require not less than 1 minute.

Fir the charge at the start of the sixth minute and record the time and temperature. Masses are measured in grams and no buoyancy corrections are applied. The same ambient conditions must be maintained for all experiments, including standardization.


The heat of combustion is a measure of the energy available from a fuel.

Product Description Heat of combustion is determined in this test method by burning a weighed sample in an oxygen bomb calorimeter under controlled conditions. Available request a quote. Determine the Energy Equivalent of the Calorimeter – average not less than six tests using standard benzoic acid. Seal down the flap by pressing lightly with a metal spatula. S240 with adequate ventilation.

Koehler K / K Bomb-type Calorimeter (ASTM D, D, D, D, D) | Labequip

This procedure is acceptable, provided ashm is used in all tests, including standardization. Do not take internally. Your email address will not be published.

Do not drop cylinder. Use the same units in all calculations, including standardization. In this design the oxygen bomb and bucket are removed from the calorimeter for loading the sample and filling the bucket with the carefully measured amount of water which absorbs the energy released in the combustion.