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Base oil
Atmospheric
distillate oil
Oil
Naphthenic oil
Test item | Quality index
|
Experimental method | |||
---|---|---|---|---|---|
Colour number | 1.5 | 1-3 | Visual | ||
Kinematic viscosity(100℃)/mm2/S | 20-50 | 7-12 | GB/T265 | ||
density(20℃)/g/cm3 | 0.80-0.90 | 实测 | GB/T1884 | ||
Flash point (opening)/℃ | ≥180 | ≥185 | GB/T3536 | ||
Water content/% | mark | mark | GB/T260 | ||
Ash content/% | Actual measurement | Actual measurement | GB/T508 | ||
Freezing point/℃ | ≤-20 | ≤-10 | GB/T3535 | ||
Sulfur content/% | Actual measurement | Actual measurement | GB/T380 | ||
Refractive index(20℃) | Actual measurement | Actual measurement | GB/T614 | ||
Mechanical impurities | ≤0.1 | ≤0.1 | GB/T511 | ||
Acid valuemgKOH/g/% | ≤0.50 | ≤0.50 | GB/T264 | ||
Aniline point/℃ | ≥70 | GB/T262 |