| 1. | Appearance | The oil shall be clear transparent and free from suspended matter or sediment. |
| 2. | Density At 29.5° C (Max.) | 0.89 gm/cm3 |
| 3. | Kinetc Vescosity At 27° C (Max.) | 27 Cast |
| 4. | Interfacial Tension At 27° C (Min.) | 0.04 N/m |
| 5. | Flash Point, Pensky Marten (Closed) Min. | 140° C |
| 6. | Pour Point (Max.) | - 6° C |
| 7. | Neutralization Value | |
| (a) Total Acidity (Max.) | 0.03 mg/KOH/gm | |
| (b) Inorganic acidity / alkalinity | Nil | |
| 8. | Corrosive Sulphur (in terms of classification of copper strip) | Non-Corrosive |
| 9. | Di-electric Strength (Break down voltage) Min. | |
| New untreated oil | 30 KV (rms) | |
| After treatment | 60 KV (rms) | |
| 10. | Di-electric dissipation factor (ten delta) at 90° C (Max.) | 0.002 |
| 11. | Specific resistance (Resistivity) | |
| (a) At 90° C (Min.) | 50 x 1012 ohm cm | |
| (b) At 27° C (Min.) | 1500 x 12° ohm cm | |
| 12. | Oxidation Stability | |
| (a) Neutralization value after Oxidation (Max.) | 0.40 mg / KOH / gm | |
| (b) Total sludge, after Oxidation (Max.) | 0.10 percent by weight | |
| 13. | Presence of Oxidation inhibitor | The oil shall not contain anti-oxidant additives. |
| 14. | Water Content Max | 50 ppm |
| 15. | Ageing characteristics after accelerated ageing / Open breaker method with copper catalyst | |
| (a) Specific Resistance (Resistivity) | ||
| (i) At 27° C (Min.) | 2.5 x 1012 ohm-cm | |
| (ii) At 90° C (Min.) | 0.2 x 1012 ohm-cm | |
| (b) Di-electric dissipation factor (tan delta at 90° C Max. | 0.2 | |
| (c) Total Acidity (Max.) | 0.05 mg / KOH . gm | |
| (d) Total sludge value (Max.) | 0.05% |