ASTM E711 PDF
Find the most up-to-date version of ASTM E at Engineering ASTM E() [ Withdrawn ].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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Thermometer Accessories – A magnifier is required for reading mercury-in-glass thermometers to one tenth of the smallest scale division.
ASTM E (Re-approved ) – International Standards
A more diluted standard solution may be used for higher sensitivity. Notify me of new posts by email. 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.
The maximum difference between any two test points shall not be more astk 0. Temperature changes may also be recorded in electromotive force, ohms, or other units when other types of temperature sensors are used.
ASTM E711-87 (Re-approved 2004) – International Standards
The indicator selected shall be used consistently in both calibrations and calorific determinations. Before adding this water, rinse the bomb, and drain the excess water, and leave undried. The maximum difference in correction between any two test points shall not be more than 0. To be acceptable, the standard deviation of the series shall be 6. Precision and Asgm 6 Standardization tests should be repeated after changing any part of the calorimeter and occasionally as a check on both calorimeter an operating technique.
Time is expressed in minutes. Wastes processed to coarse particle size with or without ferrous metal separation.
There is no correction for platinum or palladium wire provided the ignition energy is constant. The calorific value, or heat of combustion, is a measure of the energy available from the fuel.
ASTM E711 – 87 Gross Calorific Calorimeter
The following two conditions are possible: Made to help students memorize the basics of muscles. The standard solution 0. RDF products are frequently non-homogeneous. Recommended hygienic practices include use of gloves when handling RDF and washing hands before eating or smoking.
Directions for these corrections are given in Appendix X2. It shall be constructed so that any water evaporating from the jacket will condense on the calorimeter. The weight of solid fuel sample and the pressure of the oxygen zstm to the bomb must not exceed the bomb manufacturer’s recommendations.
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. sstm
ASTM E – 87 Gross Calorific Calorimeter – PDF Free Download
Weigh the sample to the nearest 0. Allow 5 min for attainment of equilibrium; then record the calorimeter temperatures Note 6 at 1-min intervals for 5 min. This standard does not purport to address all of the safety concerns, if any, associated with its use.
Terminology refuse-derived fuels—soli 3. The calorific value is computed from temperature observations made before and after combustion, e71 proper allowance for thermometer and thermochemical corrections.
Record ast, as the final temperature. For this purpose, any individual run may be discarded only if there is evidence indicating incomplete combustion. Combustible waste fraction densified compressed into the form of pellets, sligs, cubettes, or briquettes. Firing Circuit – A 6 to 16V alternating or direct current is required for ignition purposes with an ammeter or pilot light in the circuit ast, indicate when current is flowing.
A stepdown transformer connected to an alternating current lighting circuit or batteries may be used. Valves, gauges, and gaskets must meet industry safety codes. Commercially prepared pellets may be used provided they are made from National Bureau of Standards benzoic acid.