VNII NP-403
GOST 16728-78
Industrial oil VNIINP-403-distillate oil of sulfur and low-sulfur containing antioxidant, anti-corrosion and anti-foam additives.
It is intended for use as a working fluid for volumetric hydraulic drive of metal-cutting machines, automatic lines, individual heavy presses and other industrial equipment, as well as in circulating lubrication systems of metal-cutting machines and other mechanisms operating on oil with similar properties.
| Index name | Norm |
|---|---|
| Density at 20°C, kg/m3 | 860-890 |
| Kinematic viscosity at 40°C, mm2/s | 41-51 |
| Acid number, mg Koh/g | 0,7-1,0 |
| Viscosity index, not less than | 97 |
| Temperature, °С | |
| Flash Point, COC | 202 |
| Pour Point | -20 |
| Mass fraction,%, not more: | |
|
sulfur
|
1,0 |
|
mechanical admixture
|
0,007 |
|
water
|
none |
|
acid number after oxidation, mg Koh/g, not more
|
1,3 |
|
the residue after oxidation
|
none |
| Corrosion effects on copper and steel | withstands |
