
Base Oil

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Enquire about this productSpecification limits and measured sample results are listed separately. Results apply to the source sample or batch and may vary between deliveries.
Inspection date: 2026-08-28
| Parameter | Specification | Unit | Measured result | Test method |
|---|---|---|---|---|
| Appearance | Transparent | Transparent | Visual | |
| Kinematic viscosity at 100 °C | 3.80 to <4.50 | cSt | 4.248 | GB/T 265-1988 |
| Kinematic viscosity at 40 °C | Report | cSt | 18.86 | GB/T 265-1988 |
| Viscosity index | ≥120 | 134 | GB/T 1995-1998 | |
| Color number | ≤0.5 | <0.5 | GB/T 6540-2025 | |
| Flash point, open cup | ≥200 | °C | 224 | GB/T 3536-2008 |
| Pour point | ≤-18 | °C | -24 | GB/T 3535-2025 |
| Cloud point | ≤-10 | °C | -15 | GB/T 6896-2014 |
| Density at 20 °C | Report | kg/m³ | 814.2 | GB/T 18484-2000 |
| Acid number | ≤0.01 | mg KOH/g | 0.003 | GB/T 4945-2002 |
| Sulfur | ≤10 | µg/g | 0.6 | SH/T 0689-2000 |
| Saturates | ≥98 | mass % | 99.2 | SH/T 0607-1994 |
| Low temperature dynamic viscosity at -35 °C | Report | mPa·s | 1858 | GB/T 6538-2022 |
| Rotating pressure vessel oxidation at 150 °C | ≥300 | min | 380 | SH/T 0193-2022 |
| Evaporation loss at 250 °C, 1 h | ≤15 | % | 13.8 | SH/T 0059-2010 |
| Water | ≤50 | mg/kg | 30 | GB/T 11133-2015 |