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The quality of the coal has been analyzed at the chemical coal laboratory of the Directorate of Mineral Resources of Bandung.
In addition to the above government institutions, other analyses have also been approved by PT Sucofindo, Carsurin, Geoservices, SCCI, IOL, Anindya, Triyasa. The analysis works with ASTM (American Standard for Testing Materials) and BS (British Standard) methods.
| Coal Quality | PT. Astaka Dodol | PT. Baturona Adimulya |
|---|---|---|
| Total Moisture (%) ar | 35 - 38 | 40 - 47 |
| Inherent Moisture (%) adb | 11 - 13 | 13 - 15 |
| Ash Content (%) adb | 4 - 6 | 7 - 9 |
| Volatile Matter (%) adb | 39 - 46 | 44 - 46 |
| Fixed Carbon (%) adb | 33 - 39 | 33 - 37 |
| Total Sulphur (%) adb | 0,2 - 0,5 | 0,8 - 1 |
| GAR Calorific Value (kcal/kg) | 4.600 - 4.800 | 3.200 to 3.400 |
| HGI | 60 - 65 | 65 - 70 |
| ASH FUSION ( Reducing ) | ||
| Initial Deformation | 1,250C | 1,200C |
| Hemispherical | 1,380C | 1,230C |
| Flow | 1,380C | 1,240C |