Property | Test method | Guaranteed data |
T10 | TA10 | T25 | TA25 | T45 | TA45 |
1.物理性能Physical | | | | | | |
Appearance | IEC 296 | Clear, free from sediment |
20°CDensity, 20°C, g/cm3 | ISO12185 | <0.8950 | | | | 0.842 | |
运动粘度Viscosity, 40°C, mm2/s | ISO 3104 | 7 | | | | 8.3 | |
运动粘度Viscosity, -30°C, mm2/s | | | | | | |
闪点Flash Point, PM,℃ | ISO 2719 | 168 | | | | 172 | |
倾点, Pour Point,℃ | ISO 3016 | -15 | | | | -48 | |
2.化学性能Chemical | | | | | | |
Neutralization value ,mg KOH/g | IEC 296 | | | | | 0.010 | |
Corrosive sulphur | ISO 5662 | non-corrosive |
Aromatic content, % | IEC 590 | <7 | | | | <7 | |
Antioxidant, phenols ,Wt % | IEC 666 | <0.4 | | | | 0.3 | |
Water content , mg/kg | IEC 814 | <20 | | | | NIL | |
3.电性能Electrical | | | | | | |
Dielectric dissipation factor at 90°C | IEC 247 | <0.005 | | | | 0.002 | |
Interfacial tension, mN/m | ISO 6295 | 40min | | | | 45 | |
Breakdown voltage , kV | -Before treatment | IEC156 | 30~60 | | | | 60 | |
-After treatment | IEC 296 | >70 | | | | 75 | |
4.抗氧化安定性Oxidation Stability | | | | | | |
Neutralization value,120℃x164h, h | IEC1125B | | | | | | |
Total acidity ,120℃×164h,mg KOH/g | IEC1125C | | | | | | |
Induction period,120℃×164h, Wt % | | | | | | |
5、抗析气能力Gassing tendency | | | | | | |
Hydrogen, mm3/ min | IEC628(A) | | | | | | |
6、Health, safety and environment | | | | | | |
DMSO extractable compounds,Wt % | IP346 | <3 | | | | <3 | |
PCB | IEC61619 | Not detetable |