Research Article
Biodiesel Production Process Optimization from Sugar Apple Seed Oil (Annona squamosa) and Its Characterization
Table 2
ASTM standard test methods used for determination of fuel properties.
| Property | Test method | Unit |
| Flash point | D93-10 | °C | Density | D1298-99 | kg/m3 | Kinematic viscosity | D445-09 | mm2/s | Calorific value | D240-09 | MJ/kg | Calculated cetane index (cetane number) | D976-06 | — | Acid number | D5555-95 | mg KOH/g | Copper strip test | D130-04 | — | Sulfated ash | D874-07 | w/w (%) | Conradson carbon residue | D189-06 | w/w (%) | Distillation | D86-09 | °C |
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