ТУ У 24.6-30802090-068:2007VNII NP-282 А and VNII NP-282М А are lubricants intended for sealing and greasing attrition faces of various equipment units functioning at different loading in contact with aggressive media and gaseous oxygen at the temperature from minus 45°С up to 150°С. The lubricants may also be used in powerful mechanisms and the armature of oxygen-respiratory devices at the temperature not lower than minus 60°С.The lubricants possess increased stability against oxygen and the influence of such aggressive media as acids, amines, hydrazines. The stability decreases because of a continuous contact with nitric acid and hydrogen peroxide.Guarantee period of storage - 5 years from the day of manufacture.Table 79
| Index Name |
VNII NP-282 А |
VNII NP -282М А |
| Appearance |
Homogenous smooth ointment from white to light-grey colour |
| Penetration at 25°С, mm•10−1 |
Not fixed |
| Efficient viscosity, Pа•s: |
|
|
| - at 50°С and at the average gradient of the strain rate of 1000 s−1, not less than |
not less than 1,6 |
not more than 1,0 |
| - at minus 20°С and at the average gradient of the strain rate of 10 s−1, not more than |
– |
1200 |
| - at minus 30°С and at the average gradient of the strain rate of 10 s−1, not more than |
2000 |
– |
| Proof strength at 50°С, Pа |
200-700 |
not more than 200 |
| Colloid stability, % of the secreted oil, not more than |
5 |
10 |
| Corrosive influence on metals |
Withstands |
| Content of mechanical impurities with the particles’ diameter more than 0,1 mm |
None |
| Evaporation at 150°С within 1 h, %, not more than |
5 |
5 |
|
