Find the most up-to-date version of ASTM E at Engineering ASTM E() [ Withdrawn ].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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Allow 5 min for attainment of equilibrium; then record the calorimeter temperatures Note 6 at 1-min intervals for 5 min. Purity of Water – Unless otherwise indicated, references to water shall be understood to mean reagent water. The crystals shall be pelletized before use. A stepdown transformer connected to an alternating current lighting circuit or batteries may be aastm. Other grades may be used, provided it is first ascertained that the reagent is of sufficiently high purity to permit its use without lessening the accuracy of the determination.
Combustible waste fraction densified compressed into the form of pellets, sligs, cubettes, or briquettes.
Take calorimeter readings at 1-min intervals until the same temperature is observed in three successive readings. If the bomb is lined with platinum or gold, all openings shall be sealed to prevent combustion products from reaching the base metal.
The crystals shall be pelleted before use.
Notify me of follow-up comments by email. The jacket may be arranged so as to remain at axtm temperature or with provisions for rapidly adjusting the jacket temperature to equal that of the calorimeter for adiabatic operation.
Summary of Test Method of equal or better accuracy are satisfactory.
ASTM E (Re-approved ) – International Standards
Leave a Reply Cancel reply Your email address will not be published. Do not record time intervals since they are not critical in the adiabatic method. Purity of Reagents – Reagent grade chemicals shall be asmt in all tests. The bomb shall be designed so that all liquid combustion products can be completely recovered by washing the inner surfaces. Terminology refuse-derived fuels—soli 3.
ASTM E711 – 87 Gross Calorific Calorimeter
Calorific value is determined in this method by burning a weighed analysis sample in an oxygen bomb calorimeter under controlled conditions. Before adding this water, rinse the bomb, and drain the excess water, and leave undried.
For this concentration the energy of the reaction. Carefully weigh approximately 1 g of the sample directly into the crucible in which it is to be burned or into a tared weighing scoop from which the sample is transferred to the crucible.
ASTM E – 87 Gross Calorific Calorimeter – PDF Free Download
Sample Holder – Samples shall be burned in an open crucible of platinum, quartz, or acceptable base-metal alloy. To be acceptable, the standard deviation of the series shall be 6. Current edition approved Aug. Wastes processed to coarse particle size with or without ferrous metal separation.
The sampling method for this procedure should be based on agreement between the involved parties. Examine the bomb interior and discard the test if asmt sample or sooty deposits are found.
Use the same amount 6 0. Standardization tests should be repeated after changing any part of the calorimeter and occasionally as a check on both calorimeter an operating technique. A Wheatstone bridge and galvanometer capable of measuring resistance to 0. Oxygen – Charge the bomb with oxygen to a consistent pressure between 20 and 30 atm 2. Tap water may be satisfactory for use in calorimeter bucket. Valves, gauges, and gaskets must meet industry safety codes.
The pressure gauge shall be checked periodically asm accuracy.
Thermometer Accessories – A magnifier is required for reading mercury-in-glass axtm to one tenth of the smallest scale division. The oxygen supply cylinder should be equipped with an approved type of safety device, astj as a reducing valve, in addition to the needle valve and pressure gauge used in regulating the oxygen feed to the bomb.
A superscript supers cript epsilon e indicates an editorial change since the last revision or reapproval. 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.
Estimate Beckmann thermometer readings to the nearest 0.