Find the most up-to-date version of ASTM E at Engineering ASTM E() [ Withdrawn ].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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It shall have a device for stirring the water thoroughly and at a uniform rate, but with minimum heat input. Suitable reducing valves and adapters for 2 to 3. Knowledge of this value is essential in assessing the commercial worth of the fuel and to provide the basis of contact between 7e11 and user. ISO — International Standards. The chairman of E Either isothermal or adiabatic calorimeter jackets may be used. If, by accident, the oxygen introduced into the bomb sstm exceed the specified pressure, do not proceed with the combustion.

Carefully wash the interior of the bomb, including the capsule with distilled or de-ionized water containing the titration indicator until the washings are free of acid.

It shall be constructed so that any water evaporating from the jacket will condense on the calorimeter. Allow 5 min for attainment of equilibrium; then record the atm temperatures Note 6 at 1-min intervals for 5 min.

ASTM E – 87 Gross Calorific Calorimeter – PDF Free Download

The bomb shall be designed so that all liquid combustion products can be completely recovered by washing the inner surfaces. The jacket may be arranged so as to remain asym constant temperature or with provisions for rapidly adjusting the jacket temperature to equal that of the calorimeter for adiabatic operation.


Combustible waste fraction densified compressed into the form of pellets, sligs, cubettes, or briquettes. Summary of Test Method of equal or better accuracy are satisfactory. Your email address will not be published. Caution – The ignition circuit switch shall be of momentary double-contact type, normally open, except when held closed by the operator. Lp Gross Hematuri 1Deskripsi lengkap.

The weight of the pellets of benzoic acid in each series should be regulated to yield the same temperature rise as that zstm with the various samples tested in the individual laboratories. There shall be no gas leakage during a test. The apparatus should be shielded from direct sunlight and radiation from other sources. Standardization tests should be repeated after changing any part of the calorimeter and occasionally as a check on both calorimeter an operating technique.

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ASTM E (Re-approved ) – International Standards

Controlled d711 temperature and humidity are desirable. Precision and Bias 6 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. For this concentration the energy of the reaction. Asmt for these corrections are given in Appendix X2. Record this as the final temperature.


The standard solution 0. A more diluted standard solution may be used for higher sensitivity. Tap water may be satisfactory for use in calorimeter bucket.

Collect the washings in a beaker and titrate the washings with standard carbonate solution. Either isothermal or adiabatic calorimeter jackets may be adtm. 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.

ASTM E711-87 (Re-approved 2004) – International Standards

The indicator selected shall be used consistently in both calibrations asym calorific determinations. If the bomb is lined with platinum or gold, all openings shall be sealed to prevent combustion products from reaching the base metal. Calorimeter – describes the bomb, the vessel with stirrer, and the water in which the bomb is immersed.

After the rapid-rise period about 4 to 5 minrecord temperatures at 1-min intervals on the minute until the difference between successive readings has been constant for 5 min. Do not record time intervals since they are not critical in the adiabatic method.

The bomb shall be capable of withstanding a hydrostatic pressure test of 21 MPa psig at room temperature without stressing any part beyond its elastic limit.