SP-3
GOST 5702-75
Lubrication technological SP-3 is made of transformer oil of the TK brand or industrial oil of General purpose of the I-12A brand.
It is used in rolling of non-ferrous metals and as a hydraulic fluid.
| Index name | Norm |
|---|---|
| Appearance | Homogeneous oily liquid from light brown to dark brown |
| Test of the corrosive action of the lubricant | withstands |
| Acid number, mg Koh per 1 g of lubricant | 17 – 21 |
| Ash content,%, not more | 0,03 |
| Water content | none |
| Content of mechanical impurities | none |
| The stability of the emulsion | does not separate |
| Alkaline number, mg KOH per 1 g of lubricant, not less | 7 |
