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Digital Data Systems "dry" static jacket bomb calorimeter systems are manufactured and designed in accordance with the following International Standards:
ISO 1928: 1995
Solid mineral fuels - Determining gross calorific value by bomb calorimetric method, and calculation of net CV.
Annexure B: Isoperibol and Static Jacket Bomb Calorimeter Below is an extract from this International Standard:
Principle The Characteristic feature of isoperibol calorimeters is the isothermal jacket. The temperature of the surrounding thermostat is kept constant throughout the experiment by active control. The static jacket calorimeter has a thermal capacity such that, even without active control, its temperature remains nearly constant during measurements. In both cases there is a flow of heat between the calorimeter itself and the thermostat. Calorimeters surrounded by thermally insulating material behave largely as static jacket calorimeters.
DIN 51900-2
Determining the gross calorific value of solid and liquid fuels using the Isoperibol or static-jacket calorimeter, and calculation of net CV.
Below is an extract from this International Standard:
The calorimetric bomb prepared as specified in DIN51900-1 is placed in a calorimeter can, which is filled with water and surrounded by an isoperibol or static jacket insulating jacket . After temperature has equalized and the fore period has elapsed, the fuel sample is fired and the increase in temperature is recorded. Recording is terminated at the end of the after period. The gross calorific value of the sample material is calculated from the corrected temperature rise and the effective heat capacity of the calorimeter.
NOTE: The specified method
using an isoperibol or static jacket calorimeter covers all
procedures in which the temperature of the calorimeter can differ from that of
the jacket. As a result of the temperature difference, it is necessary to
correct the rise in temperature for the heat exchange (1). British BS 4791:1985
Specification For Calorimeter Bombs.
British BS 1016:105:1992
Methods for analysis and testing of coal and coke. Determination of gross calorific value using adiabatic, isothermal or static bomb calorimeter.
ASTM D240-02
Heat of Combustion of Liquid Hydrocarbon Fuels by Bomb Calorimeter.
ASTM D4809-00
Heat of Combustion of Liquid Hydrocarbon Fuels by Bomb Calorimeter (Precision Method).
ASTM E144-94
Standard Practice for Safe Use of Oxygen Combustion Bombs.
Digital Data Systems CAL2k, E2K and ECO bomb calorimeter systems carrys the CE Mark.
Click here to download the CE Certification. Digital Data Systems vessels are pressure tested and certified by OSG which is an a government approved inspection authority. All CAL2k pressure vessels are tested in accordance with International Standards. Click here to download a sample of the test certificate.
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