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base oil
Blending
Anti wear hydraulic oil
Test item | Quality index
|
Experimental method | |||||
---|---|---|---|---|---|---|---|
Appearance | Pale yellow liquid | Pale yellow liquid | Pale yellow liquid | Visual | |||
Kinematic viscosity(40℃)/mm2/S | 28.8∼35.2 | 41.4∼50.6 | 61.2∼74.8 | GB/T265 | |||
Flash point (opening)/℃ | ≥200 | ≥200 | ≥200 | GB/T267 | |||
Pour point/℃ | ≤-20 | ≤-20 | ≤-20 | GB/T3535 | |||
Water content/% | mark | mark | mark | GB/T260 | |||
Water soluble acid or alkali% | 无 | 无 | 无 | GB/T259 | |||
Volatile parts(150℃,90min)% | ≤1.7 | ≤1.7 | ≤1.7 | GB/T7325 | |||
viscosity index | ≥95 | ≥95 | ≥95 | GB/T1995 | |||
Mechanical impurities% | 无 | 无 | 无 | GB/T511 |