Base Oil
Base Oil
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Group II Base Oil 90BS
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Enquire about this productGroup II Base Oil 90BS
Technical specifications
Specification limits and measured sample results are listed separately. Results apply to the source sample or batch and may vary between deliveries.
Inspection date: 2026-09-21
| Parameter | Specification | Unit | Measured result | Test method |
|---|---|---|---|---|
| Appearance | Clear, no flocculent matter | Clear, no flocculent matter | Visual | |
| Kinematic viscosity at 100 °C | Report | cSt | 23.03 | GB/T 265-1988 |
| Kinematic viscosity at 40 °C | Report | cSt | 181.8 | GB/T 265-1988 |
| Viscosity index | ≥90 | 154 | GB/T 1995-1998 | |
| Color number | ≤1.0 | <0.5 | GB/T 6540-2025 | |
| Flash point, open cup | ≥260 | °C | 294 | GB/T 3536-2008 |
| Pour point | ≤-9 | °C | -21 | GB/T 3535-2025 |
| Saturates | ≥95 | mass % | 98.0 | SH/T 0607-1994 |
| Density at 20 °C | Report | kg/m³ | 837.5 | GB/T 1884-2000 |
| Acid number | ≤0.02 | mg KOH/g | 0.007 | GB/T 7304-2000 |
| Demulsibility at 82 °C | Report | min | 5 | GB/T 7305-2003 |
| RPVOT | ≥250 | min | 375 | SH/T 0193-2022 |
| Sulfur | ≤50 | mg/kg | 1.2 | SH/T 0689-2000 |
