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15 Sep STANDARD TEST METHOD FOR HEAT OF COMBUSTION OF LIQUID HYDROCARBON FUELS BY BOMB CALORIMETER. This test method. 2 Sep Standard Test Method for Heat of Combustion of Liquid Hydrocarbon Fuels by Bomb Calorimeter. This test method covers the determination of. 14 Jun The heat of combustion is a measure of the energy available from a fuel.

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Notify me zstm new posts by email. Avoid buildup of vapors and eliminate all sources of ignition, astk non-explosion-proof electrical apparatus and heaters. Shorter lengths may be used if the same length is employed in all tests, including standardization tests. The direct rays of the sun shall not strike the jacket or thermometers.

Use a mm length of No. Adjust the jacket temperature to be equal to or slightly lower than the calorimeter, and run for 5 min to obtain equilibrium. Benzoic Acid powder must be compressed into a tablet or pellet before weighing. This standard does not purport to address all of the safety concerns, if any, associated with its use.

Oxygen – with the axtm sample and fuse in place, slowly charge the bomb with oxygen to 3.

China ASTM D Oxygen Bomb Calorimeter – China Oxygen Bomb Calorimeter, Bomb Calorimeters

Timing Device A watch or other timing device capable of measuring time to 1s is required for use with the isothermal jacket calorimeter. Evolution of heat asrm a violent reaction or eruption upon too rapid mixture with water.

Sample Holder D2240 samples shall be burned in an open crucible of platinum preferredquartz or acceptable base metal alloy. Weigh the sample to the nearest 0. The immersed portion of the stirrer shall be coupled to the outside through a material of low heat conductivity. Continuous stirring for 10 min shall not raise the calorimeter temperature more than 0.


Available request a quote. Tape – place a piece of pressure-sensitive tape across the top of the cup, trim around the edge with a razor blade, and seal tightly.

When mixing with astn, add slowly to surface of solution to avoid violent splattering. Benzoic Acid pellets for which the heat of combustion has been determined by comparison with the National Bureau of Standards are obtainable commercially for those laboratories not equipped to pellet benzoic acid.

These tests should be spaced over a period of not less than three days.

Add the sample to the capsule. The direct rays of the sun shall not strike the jacket or thermometers.

ASTM D240-09 – International Standards

Looking for a specific close-up? This test method covers the determination of the heat of combustion of liquid hydrocarbon fuels ranging in volatility ast, that of light distillates to that of residual fuels.

Observations, Isothermal Jacket Method – Assemble the calorimeter in the jacket and start the stirrer. Adequate facilities for lighting, heating, and ventilating shall be provided. All parts are to be constructed of materials which are not affected by the combustion process or products sufficiently to introduce measurable heat input or alteration of end products.

Observations, Adiabatic Jacket Method – Assemble the calorimeter in the jacket and start the stirrers. Thermometer Accessories A magnifier is required for reading mercury-in-glass thermometers to d40 tenth of the smallest scale division.

Petroleum Products and Biofuel lab apparatus baths, calorimeters, color measurement, density d2240, flash point, hydrogenators, oil testing, penetrometers, surface tension, vapor pressure, viscometers and rheometers, Do not use cylinder without label.


The range of such aircraft between refueling is a direct function of the heat of combustion and density of the fuel. Under normal conditions, this test method is directly applicable to such fuels as gasolines, kerosines, Nos. Your email address will astj be published. Either isothermal or adiabatic calorimeter jackets can be used. The values stated in SI units are to be regarded as the standard.

ASTM D240 – 17

It may be measured in minutes and seconds. There must be no gas leakage during a test. Notify me of follow-up comments by email. Save my name, email, and site URL in my browser for next time I post a comment. Checking asgm Calorimeter for Use with Volatile Fuels – Use 2,2,4-trimethylpentane to determine whether the results obtained agree with the certified value Jacket – Dd240 calorimeter shall be completely enclosed within a stirred water jacket and supported so that its sides, top, and bottom are approximately 10mm from the jacket wall.

Heat of combustion is determined in this test method by burning a weighed sample in an oxygen bomb calorimeter under controlled conditions. Note – As used in this test method, the term calorimeter designates the bomb, the vessel with stirrer, and the water in which the bomb is immersed.

Adequate facilities for lighting, heating, and ventilating shall be provided.

Water in bomb – Add 1.