ASTM D4809 PDF
ASTM D Standard Test Method for Heat of Combustion of Liquid Hydrocarbon Fuels by Bomb Calorimeter (Precision Method). ASTM D – Heat of Combustion. Significance and Use. The heat of combustion is a measure of the energy available from a fuel. A knowledge of this . Buy ASTM D TEST METHOD FOR HEAT OF COMBUSTION OF LIQUID HYDROCARBON FUELS BY BOMB CALORIMETER.
|Published (Last):||18 April 2005|
|PDF File Size:||9.48 Mb|
|ePub File Size:||10.77 Mb|
|Price:||Free* [*Free Regsitration Required]|
Save my name, email, and site URL in my browser for next time I post a comment. Request a Quote Contact Us. The direct rays of the sun shall not strike the calorimeter jacket, bridge, and galvanometer.
Sorry, your blog cannot share posts by email.
It is designed specifically for use with aviation turbine fuels when the permissible difference between duplicate determinations is of the order of 0.
Net Heat of Combustion – expressed as mega joules per kilogram. Energy Equivalent of the Calorimeter – Benzoic Acid shall be used as the primary standard Warning – Oxygen vigorously accelerates combustion. It shall be capable of storing calorimeter temperature readings taken at accurate intervals, firing the bomb and ending the experiment. The volumetric heat of combustion, rather zstm the mass heat of combustion, is e4809 to volume-limited craft such as automobiles and x4809, as it is directly related to the distance traveled between refueling.
We provide our clients with independent testing. The values stated in SI units are to be regarded as standard.
Pressure-Sensitive Tape – Cellophane tape 38mm wide, free of chlorine and sulfur. A relative standard deviation RSD of 0. Ask an Expert Question about our testing services? Work Item s – proposed revisions of this standard. If the bomb is lined with platinum or gold, all openings shall be sealed to prevent combustion products from reaching the base metal.
Sodium Carbonate Solution 0. Astn here to xstm A2La Certification. Corrections shall be calculated to 0. Timing Device – a watch or other timing device capable of measuring time to 1s is required for use with the isoperibol method.
Vapors may cause flash fire. In order to attain this precision, strict adherence to all details of the procedure is essential since the error contributed by each individual measurement that affects the precision shall be kept below 0. A knowledge of this value is essential when considering the thermal efficiency of equipment for producing either power or heat.
For specific warning statements, see Section 7, The heat of combustion is calculated from temperature observations before, during, and after combustion, with proper allowance for thermo-chemical and heat-transfer corrections. This test method covers the determination of the heat of combustion of hydrocarbon fuels.
ASTM D4809-13 – International Standards
The stored information along with the sample mass, nitric acid correction and sulfur content, when entered into the instrument, shall be used to calculate the desired energy equivalent or heat of combustion. It must be constructed so that any water evaporating from the jacket will not condense on the calorimeter bucket. Sodium Hydroxide Before astn, secure information on procedures and protective measures for safe handling Do not get in eyes, on skin, on clothing Avoid breathing dusts or mists Do not take internally When handling, use chemical safety goggles or face shield, protective gloves, boots and clothing When mixing with water, add slowly to surface of solution to avoid violent splattering.
Temperatures are measured in degrees Celsius C.
The heat of combustion is a measure of the energy available from a fuel. No other units of measurement are included in this standard. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. It can be used for a wide range of volatile and nonvolatile materials where slightly greater differences in precision can be tolerated.
Its magnitude is particularly important to weight-limited vehicles such as airplanes, surface effect vehicles, and hydrofoils as the distance such craft can travel on a given weight of fuel is a direct function of the fuel’s mass heat of combustion and its density.
Standardize with potassium acid phthalate and adjust to 0. If not, continue to run until six determinations establish a value that has a RSD of 0. A step-down transformer connected to a V. Calorimeter Bucket – The calorimeter bucket shall be made of metal preferably copper or brass with a tarnish-resistant coating, and with all outer surfaces highly polished.
ASTM D – International Standards
Either isoperibol or adiabatic calorimeters may be used. Have a question or would like to request a quote? Continuous stirring for 10 min shall not raise the temperature more than 0. Calorimeter Jacket Controller and Auxiliary Equipment – Adjust the jacket controller, valves, heater, etc. Can cause severe burns or blindness. Thermometers – Temperature in the jacket and the calorimeter, respectively, shall be measured with the following thermometers: For specific warning statements, see Section 7 Under normal conditions, the test method is directly applicable to such fuels as gasoline, kerosene, Nos.
It is the responsibility of the user of this standard to asmt appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. The mass heat of combustion, that is, the heat of combustion per unit mass of fuel, is measured by the procedure.
Through the improvement of the calorimeter controls and temperature measurements, the precision is improved over that of Test Method D Do not use for inhalation purposes Use only in well-ventilated area See compressed gas association booklets G-4 and G4.
astj The bomb must be capable of withstanding a hydrostatic pressure test to a d4890 pressure of Position the liquid-in-glass thermometer so that the bulb is halfway to the bottom of the bucket and locate the thermistor with its sensing element at about the midpoint of the thermometer bulb.
The volumetric heat of combustion, rather than the mass heat of combustion, is important to volume-limited craft such as automobiles and ships, as it is directly related to the distance traveled between refuelings. Historical Version s – view previous versions of standard.