Find the most up-to-date version of ASTM E at Engineering ASTM E() [ Withdrawn ]. Standard Test Method for Gross Calorific Value of Refuse-Derived Fuel by the Bomb Calorimeter. Designation: E – 87 (Reapproved ) Standard Test Method for. Gross Calorific Value of Refuse-Derived Fuel by the Bomb Calorimeter1 This standard.
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Sodium Carbonate, Standard Solution 0. For this concentration the energy of the reaction. Its asrm shall be such that the bomb will be completely immersed in water when the calorimeter is assembled. Commercially prepared pellets may be used provided they are made from National Bureau of Standards benzoic acid. Examine the bomb interior and discard the test if unburned sample or sooty deposits are found.
Gross Calorific Value – the heat produced by combustion of a unit quantity of solid fuel, at constant volume, in an oxygen bomb calorimeter under specified conditions such that all water in the products remain in liquid form.
The oxygen supply cylinder should be equipped with an approved type of safety device, such as a reducing valve, in addition to the needle valve and pressure gauge used in regulating the oxygen feed to the bomb. Weigh the sample to the nearest 0. Net Calorific Value – a lower value calculated from the gross calorific value. Tap water may be satisfactory for use in calorimeter bucket.
The jacket may be arranged so as to remain at constant temperature or with provisions for rapidly adjusting the jacket temperature to equal that e7111 the calorimeter for adiabatic operation.
ASTM E – 87 Gross Calorific Calorimeter – PDF Free Download
Calorimetric-Type Platinum Resistance Thermometer,tested for accuracy zstm a known standard. Remember me Forgot password?
A step-down transformer connected to an alternating current lighting circuit or batteries may be used. Threads on the main closure should be checked frequently for wear. These thermometers shall be tested for accuracy against a known standard preferably by the National Bureau of Standards at intervals no greater than 2. Adjust the jacket temperature to be equal to or slightly lower than the calorimeter, asfm run for 5 min to obtain equilibrium. Record this as the final temperature.
ASTM E711 – 87 Gross Calorific Calorimeter
Your email address will not be published. Record the initial temperature and fire the charge. Calorific Value – the heat of combustion of a unit quantity of a substance. Lp Gross Hematuri 1Deskripsi lengkap. Detach the filling connection and exhaust the bomb in the usual manner.
Collect the washings in a beaker and titrate the washings with standard carbonate solution. Recommended hygienic practices include use of gloves when handling RDF and washing hands before eating or smoking. Time is expressed in minutes.
The apparatus should be shielded from direct sunlight and radiation from other sources. A number in parentheses indicates the year of last reapproval. Gross Income Philippine taxation gross income. If, by accident, the oxygen introduced into the bomb should exceed the specified pressure, do not proceed with the combustion.
ASTM E (Re-approved ) – International Standards
This test method covers the determination of the gross calorific value of prepared analysis sample of solid forms of refuse-derived RDF by the bomb calorimeter method. If the bomb is lined with platinum or gold, all openings shall be sealed to prevent combustion products from reaching the base metal.
The maximum difference in correction between any two test points shall not be more than 0. Before adding this water, rinse the bomb, and drain the excess water, and leave undried. Calorimeter – made of metal preferably copper or brass with a tarnish-resistant coating and with all outer surfaces highly polished. Valves, gages, and gaskets must meet industry safety codes. The weight of solid fuel sample and the pressure of the oxygen admitted to the bomb must not exceed the bomb manufacturer’s recommendations.
Purity of Water – Unless otherwise indicated, references to water shall be understood to mean reagent water. Oxygen Bomb – constructed of material that are not affected by the combustion process or products sufficiently to introduce measurable heat input or alteration of end products. Test Room – The apparatus should be operated in a room or area free of drafts that can be kept at a reasonably uniform temperature and humidity for the time required for the determination.
Threads on the main closure should be checked frequently for wear. It shall be made in accordance with the directions furnished by the calibration authority. Sample Holder – Samples shall be burned in an open crucible of platinum, quartz, or acceptable base-metal alloy. Bomb parts should be inspected carefully after each use.
Do not record time intervals since they are not critical in the adiabatic method. The usual range of weight is 0. Controlled room temperature and humidity are desirable. Calculated from data in National Bureau of Standards Circular Save my name, email, and site URL in my browser for next time I post a comment.
It is equivalent to the heat produced by combustion of a unit quantity of solid fuel at a constant pressure of one atmosphere, under the assumption that all water in the products remains in the form of vapor. Fire the charge at the start of the sixth minute and record the time and temperature. The crystals shall be pelletized before use.