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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. Valves, gauges, and gaskets must meet industry safety codes. Estimate Beckmann thermometer readings to the nearest 0. Notify me of new posts by email. A superscript supers cript epsilon e indicates an editorial change since the last revision or reapproval. Terminology refuse-derived fuels—soli 3.
The value of heat of combustion of benzoic acid, for use in the calibration calculations, shall be in accordance with the value listed in the National Bureau of Standards certificate issued with the standard. The jacket may be arranged so as to remain at constant temperature or with provisions for rapidly adjusting the jacket temperature to equal that of the calorimeter for adiabatic operation.
Commercially prepared pellets may be used provided they are made from National Bureau of Standards benzoic acid. Determine the energy equivalent of the calorimeter as the average of a series of ten individual runs, made over a period of not less than 3 days or more than 5 days. Recommended hygienic practices include use of gloves when handling RDF and washing hands before eating or smoking. After the rapid-rise period about 4 to 5 minrecord temperatures at 1-min e on the minute until the difference between successive readings has been constant for 5 min.
Sorry, your blog cannot share f by email. Leave a Reply Cancel reply Your email address will not be published. Unless otherwise indicated, it is intended that all reagents shall conform to the specifications of the Committee on Analytical Reagents of the American Chemical Society, where such specifications are available.
Calorimeter — describes the bomb, the vessel with stirrer, and the water in which the bomb is immersed. Determine the sulfur content of the sample by any of the procedures described in Test Methods E Made to help students memorize the basics of muscles. Calculated from data in National Bureau of Standards Circular Equivalent platinum of palladium wire may be used provided constant ignition energy is supplied, or measured, and appropriate corrections made.
Current edition approved Aug. Fire the charge at the start of the sixth minute and record the time and temperature. The bomb should be returned to the manufacturer occasionally for inspection and possibly proof of firing.
To be acceptable, the standard deviation of the series shall be 6. Remove and measure or weigh the combined pieces of e71 firing wire, and subtract from the original length or weight to determine the wire consumed in firing.
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. Knowledge of this value is essential in assessing the commercial worth of the fuel and to provide the basis of contract between producer and user. ISO — Adtm Standards. Do not record time intervals since they are not critical in the adiabatic method. Valves, gages, and gaskets must meet industry safety codes.
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.
This shall have a lens and holder designed so as to introduce no significant errors due to parallax. TOP 10 Related.
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