Find the most up-to-date version of ASTM E at Engineering ASTM E() [ Withdrawn ].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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Remove and measure or weigh the combined pieces of unburned firing wire, and subtract from the original length or weight to determine the wire consumed in firing. It shall be constructed so that any water evaporating from the jacket will condense on the calorimeter. This standard does not purport to address all of the safety concerns, if any, associated with its use.
The maximum difference between any two test points shall not be more than 0. Current edition approved Aug. Notify me of follow-up comments by email. Your consent to our cookies if you continue to use this website.
Gross Income Atsm taxation gross income. Net Calorific Value – a lower value calculated from the gross calorific value. Aatm bomb shall be designed so that all liquid combustion products can be completely recovered by washing the inner surfaces. Firing Circuit – A 6 to 16V alternating or direct current is required for r711 purposes with an ammeter or pilot light in the circuit to indicate when current is flowing.
The laboratory sample must be air-dried and particle size reduced to pass a 0. The buret used for the HNO3 titration shall be of such accuracy that estimations to 0. Oxygen made by the electrolytic process may contain a small amount of hydrogen rendering it unfit without purification. A more diluted standard solution may be used for higher sensitivity.
ASTM E711-87 (Re-approved 2004) – International Standards
Recommended hygienic practices include use of gloves when handling RDF and washing hands before eating or smoking. It shall be constructed so that any water evaporating from the jacket will not condense on the calorimeter. Commercially prepared pellets may be used provided they are made from National Bureau of Standards benzoic acid.
This procedure is acceptable, provided it is used in all tests, including standardization. Precision and Bias 6 Wastes astk to coarse particle size with or without ferrous metal separation. Lp Gross Hematuri 1Deskripsi lengkap. Test Room – The apparatus should be operated in a room or area free of drafts that can be kept at a reasonably uniform r711 and humidity for the time required for the determination.
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. Allow 5 min for attainment of equilibrium; then record the calorimeter temperatures Note 6 at 1-min intervals for 5 min. Observations, Isothermal Jacket Method – Assemble the calorimeter in the jacket and start the stirrer. Sodium Carbonate, Standard Solution 0.
ASTM E – 87 Gross Calorific Calorimeter – PDF Free Download
astn Time is expressed in minutes. 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. Summary of Test Method of equal or better accuracy are satisfactory. Allow 5 min for attainment of equilibrium; then record the calorimeter temperatures at 1min intervals for 5 min.
ASTM E (Re-approved ) – International Standards
Determine the correction for HNO3, and firing wire. Adjust the jacket temperature to be equal to or slightly lower than the calorimeter, and run for 5 min s711 obtain equilibrium. The usual range of weight is 0. Detach the filling connection and exhaust the bomb in the usual manner. The bomb should be returned to the manufacturer occasionally for inspection and possibly proof of firing.
Calculated from data in National Bureau of Standards Circular Estimate Beckmann thermometer readings to the nearest 0. Differential stem correction 5 1 0. The calorific value is computed from temperature observations made before and after combustion, taking proper allowance for thermometer and thermochemical corrections. These thermometers shall be tested for accuracy against a known standard preferably by the National Bureau of Standards at intervals no greater than 2. Calorific value is determined in this method by burning a weighed analysis sample in an oxygen bomb calorimeter under controlled conditions.
Jacket – The calorimeter shall be completely enclosed within a stirred water jacket and supported so that its sides, top, and bottom are approximately 10mm from the jacket walls. The maximum difference in correction between any two test points shall not be more than 0.
A step-down transformer connected to an alternating current lighting circuit or batteries may be used. Valves, gauges, and gaskets must meet industry safety codes. Firing wire shall be mm of No.