1. Light Diesel Oil (LDO)
Overview:
A Class-C fuel with flash point above 66°C. Blend of distillate and residual components. Marketed under BIS 1460-2000.
Applications:
* DG sets, irrigation pump sets
* Low RPM engines
* Boilers and small furnaces
Technical Highlights:
| SR NO. | PARAMETER / CHARACTERISTICS | TEST METHOD | SPECIFICATION LIMIT & UNIT | TEST RESULTS |
| 1 | Specific Gravity @ 30°C | ASTM D1298 | 0.86 – 0.89 g/cc | 0.875 |
| 2 | Flash Point (°C) | ASTM D93 | Above 66 °C | 68 °C |
| 3 | Kinematic Viscosity @ 40°C | ASTM D445 | 2.0 – 7.0 cSt | 4.5 cSt |
| 4 | Sulphur Content | ASTM D4294 | Max 1.0 % wt | 0.65 % wt |
| 5 | Water Content | ASTM D95 | Max 0.25 % vol | 0.12 % vol |
| 6 | Ash Content | ASTM D482 | Max 0.02 % wt | 0.01 % wt |
| 7 | Ramsbottom Carbon Residue | ASTM D524 | Max 0.15 % wt | 0.12 % wt |
| 8 | Pour Point | ASTM D97 | Max 18 °C | 15 °C |
| 9 | Calorific Value | ASTM D240 | ~10,000 kcal/kg | 10,150 kcal/kg |
Safety Information:
* Flammable, avoid contact with oxidizers
* Prolonged skin contact causes dryness or irritation
* Harmful if inhaled or ingested
2. Fuel Oil 180 CST
Overview:
A heavy residual fuel with moderate viscosity. Widely used in industries requiring continuous heat supply.
Applications:
* Boilers, furnaces, and kilns
* Power generation plants
* Steel and cement industries
Technical Highlights:
| SR NO. | PARAMETER / CHARACTERISTICS | TEST METHOD | SPECIFICATION LIMIT & UNIT | TEST RESULTS |
| 1 | Specific Gravity @ 15°C | ASTM D1298 | 0.95 – 1.00 g/cc | 0.982 |
| 2 | Flash Point (°C) | ASTM D93 | Min 66 °C | 72 °C |
| 3 | Kinematic Viscosity @ 50°C | ASTM D445 | 180 cSt (±10%) | 182 cSt |
| 4 | Sulphur Content | ASTM D4294 | Max 4.5 % wt | 3.8 % wt |
| 5 | Water Content | ASTM D95 | Max 1.0 % vol | 0.5 % vol |
| 6 | Ash Content | ASTM D482 | Max 0.1 % wt | 0.08 % wt |
| 7 | Ramsbottom Carbon Residue | ASTM D524 | Max 10 % wt | 9.2 % wt |
| 8 | Pour Point | ASTM D97 | Max 30 °C | 27 °C |
| 9 | Calorific Value | ASTM D240 | ~9,800 kcal/kg | 9,750 kcal/kg |
Safety Information:
* Heated handling required
* Avoid contact with skin and eyes
* Store in ventilated tanks
3. Fuel Oil 380 CST
Overview:
High viscosity grade furnace oil suitable for heavy-duty industrial furnaces.
Applications:
* Power plants and large industrial boilers
* Cement and steel industries
* Shipping and marine auxiliary engines
Technical Highlights:
| SR NO. | PARAMETER / CHARACTERISTICS | TEST METHOD | SPECIFICATION LIMIT & UNIT | TEST RESULTS |
| 1 | Specific Gravity @ 15°C | ASTM D1298 | 0.95 – 1.02 g/cc | 0.995 |
| 2 | Flash Point (°C) | ASTM D93 | Min 66 °C | 74 °C |
| 3 | Kinematic Viscosity @ 50°C | ASTM D445 | 380 cSt (±10%) | 385 cSt |
| 4 | Sulphur Content | ASTM D4294 | Max 4.5 % wt | 4.1 % wt |
| 5 | Water Content | ASTM D95 | Max 1.0 % vol | 0.6 % vol |
| 6 | Ash Content | ASTM D482 | Max 0.1 % wt | 0.09 % wt |
| 7 | Ramsbottom Carbon Residue | ASTM D524 | Max 12 % wt | 11.5 % wt |
| 8 | Pour Point | ASTM D97 | Max 33 °C | 30 °C |
| 9 | Calorific Value | ASTM D240 | ~9,600 kcal/kg | 9,580 kcal/kg |
Safety Information:
* Requires pre-heating before use
* Avoid spills and long storage without circulation
4. LSHS (Low Sulphur Heavy Stock)
Overview:
Cleaner heavy fuel with reduced sulphur content compared to furnace oil.
Applications:
* Thermal power stations
* Steel plants
* Large furnaces requiring lower emissions
Technical Highlights:
| SR NO. | PARAMETER / CHARACTERISTICS | TEST METHOD | SPECIFICATION LIMIT & UNIT | TEST RESULTS |
| 1 | Specific Gravity @ 15°C | ASTM D1298 | 0.89 – 0.95 g/cc | 0.92 |
| 2 | Flash Point (°C) | ASTM D93 | Min 66 °C | 72 °C |
| 3 | Kinematic Viscosity @ 100°C | ASTM D445 | 15–25 cSt | 20 cSt |
| 4 | Sulphur Content | ASTM D4294 | Max 1.0 % wt | 0.85 % wt |
| 5 | Water Content | ASTM D95 | Max 0.25 % vol | 0.15 % vol |
| 6 | Ash Content | ASTM D482 | Max 0.05 % wt | 0.03 % wt |
| 7 | Ramsbottom Carbon Residue | ASTM D524 | Max 8 % wt | 7.5 % wt |
| 8 | Pour Point | ASTM D97 | Max 18 °C | 15 °C |
| 9 | Calorific Value | ASTM D240 | ~10,200 kcal/kg | 10,150 kcal/kg |
Safety Information:
* Heated storage required
* Avoid direct exposure to fumes
5. Pyrolysis Oil
Overview:
Alternative fuel derived from waste tyre/plastic pyrolysis.
Applications:
* Industrial furnaces and boilers
* Cement kilns
* Substitute for furnace oil
Technical Highlights:
| SR NO. | PARAMETER / CHARACTERISTICS | TEST METHOD | SPECIFICATION LIMIT & UNIT | TEST RESULTS |
| 1 | Specific Gravity @ 30°C | ASTM D1298 | 0.92 – 1.05 g/cc | 0.985 |
| 2 | Flash Point (°C) | ASTM D93 | 40–70 °C | 55 °C |
| 3 | Kinematic Viscosity @ 40°C | ASTM D445 | 2.0 – 6.0 cSt | 3.8 cSt |
| 4 | Sulphur Content | ASTM D4294 | Max 1.0 % wt | 0.72 % wt |
| 5 | Water Content | ASTM D95 | Max 1.0 % vol | 0.5 % vol |
| 6 | Ash Content | ASTM D482 | Max 0.1 % wt | 0.06 % wt |
| 7 | Ramsbottom Carbon Residue | ASTM D524 | Max 5 % wt | 4.1 % wt |
| 8 | Pour Point | ASTM D97 | Max 20 °C | 18 °C |
| 9 | Calorific Value | ASTM D240 | ~9,500 kcal/kg | 9,600 kcal/kg |
Safety Information:
* Contains reactive hydrocarbons
* Avoid long-term storage without additives
6. Furnace Oil
Overview:
Cleaner heavy fuel with reduced sulphur content compared to furnace oil.
Applications:
* Thermal power stations
* Steel plants
* Large furnaces requiring lower emissions
Technical Highlights:
| SR NO. | PARAMETER / CHARACTERISTICS | TEST METHOD | SPECIFICATION LIMIT & UNIT | TEST RESULTS |
| 1 | Specific Gravity @ 15°C | ASTM D1298 | 0.89 – 0.95 g/cc | 0.92 |
| 2 | Flash Point (°C) | ASTM D93 | Min 66 °C | 72 °C |
| 3 | Kinematic Viscosity @ 100°C | ASTM D445 | 15–25 cSt | 20 cSt |
| 4 | Sulphur Content | ASTM D4294 | Max 1.0 % wt | 0.85 % wt |
| 5 | Water Content | ASTM D95 | Max 0.25 % vol | 0.15 % vol |
| 6 | Ash Content | ASTM D482 | Max 0.05 % wt | 0.03 % wt |
| 7 | Ramsbottom Carbon Residue | ASTM D524 | Max 8 % wt | 7.5 % wt |
| 8 | Pour Point | ASTM D97 | Max 18 °C | 15 °C |
| 9 | Calorific Value | ASTM D240 | ~10,200 kcal/kg | 10,150 kcal/kg |
Safety Information:
* Heated storage required
* Avoid direct exposure to fumes