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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All equipment and containers use must be suitable and recommended for oxygen service. Keep cylinder from corrosive environment.

This procedure is acceptable, provided it is used in all tests, including standardization. Sodium Carbonate Solution – Dissolve 3. The heat of combustion is computed from temperature observations before, during and after combustion with proper allowances for thermochemical and heat transfer corrections.

Discussion – The fuel can be either liquid or solid, and contain only the elements carbon, hydrogen, nitrogen, and sulfur. Observations, Adiabatic Jacket Method – Assemble the calorimeter in the jacket and start the stirrers.

This standard does not purport to address all of the safety concerns, if x240, associated with its use. Looking for a specific close-up?

Weigh the cup and tape. Thermometers – Temperatures in the calorimeter and jacket shall be measured with the following thermometers or combinations thereof:.

Pressure-Sensitive Tape – Cellophane tape 38mm 1. Sorry, your blog cannot share posts by email. Place a 3mm by 12mm strip of tape creased in the middle and sealed by one edge in the center of the tape disk to give a flap arrangement.


Do not drop cylinder.

ASTM D – International Standards

Save my name, email, and site URL in my browser for next d2440 I post a comment. The heat of combustion is a measure of the energy available from a fuel. In this procedure, the combustion takes place at a constant pressure of 0. It can achieve the highest level of precision and accuracy of any oxygen bomb calorimeter.

ASTM D240-09 – International Standards

Keep cylinder out of sun and away from heat. If purification is necessary, see A1. Temperatures can be recorded in either degrees Fahrenheit or ohms or other units when using electric thermometers. When mixing with water, add slowly to surface of d204 to avoid violent splattering.

Discussion – The fuel can be either liquid or solid, and contain only the elements carbon, hydrogen, oxygen, nitrogen, and sulfur. Do not use for inhalation purposes. Place the cup in the curved electrode and arrange the fuse wire so that the central portion of the loop presses down on the center of the tape disk.

Asrm isothermal or adiabatic calorimeter jackets can be used. Continuous stirring for 10 min zstm not raise the calorimeter temperature more than 0.

After the rapid 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. Tape – place a piece of pressure-sensitive tape d24 the top of the cup, trim around the edge with a razor blade, and seal tightly.

Each of these thermometers shall have been tested for accuracy at intervals no larger than 2. It shall have a device for stirring the water thoroughly and at a uniform asmt, but with minimum heat input. Do not get in eyes, on asttm, on clothing. It is the responsibility of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. This test method covers the determination of the heat of combustion of liquid hydrocarbon fuels ranging in volatility from that of light distillates to that of residual fuels.


Fill a hypodermic syringe with the sample. For highly volatile fluids, reduce loss with use of tape or gelatin capsule mineral oil.

Thermometer Accessories – A magnifier is required for reading liquid-in-glass thermometers to one tenth of the smallest scale division. The same ambient conditions must be maintained for all experiments, including standardization.

Sodium Hydrozide Solution – Dissolve 3. Sodium Hydroxide – Warning – Corrosive. The products of combustion, in oxygen, are carbon dioxide, nitrogen oxides, sulfur dioxide, and water, all in the gaseous state.

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

Allow 5 min for attainment of equilibrium, then record the calorimeter temperatures asstm 1-min intervals for 5 min. Keep combustibles away from oxygen and eliminate ignition sources.

Repeat the standardization tests after changing any part of the calorimeter and occasionally as a check on both calorimeter an operating technique. For technical use only.