Kinematic viscosity (50 ℃), mm 2 /s 6~10 GB/T265
Acid value, mgKOH/g not more than 0.1% GB/T264; Flash point (closed), not lower than 135℃ GB/T261; Freezing point, not higher than -10℃ GB/T510; Ash content, not more than 0.01% GB/T T508; Corrosion test (40/50 steel sheet, 100 ℃, 3h) qualified SH/T0195; Color quality light transmittance (45# filter), not less than 75% 581 Photoelectric colorimetric needle.
