All-Union State Standards 38. 01445-88
This is a lubricating and cooling liquid for blade processing including that on automatic machines, carbon, stainless, high-temperature steels and steel alloys as well as some intractable alloys. The utilization of this LCL for the treatment of copper and its alloys is limited. The LCL is supplied into the cutting area by watering or under pressure.
Guarantee period of storage – 1 year from the day of manufacture.
| Index Name |
МR-7 |
| Appearance |
Homogenous transparent oily brown liquid |
| Smell |
Specific, of mineral oil |
| Kinematic viscosity at 50°С, mm2/s |
23–30 |
| Flash temperature in an open crucible, °С, not lower than |
180 |
| Acid number, mg КОN/1g, not more than |
1,2 |
| Fraction of total mass, %: |
|
| - mechanical impurities, not more than |
0,04 |
| - water, not more than |
None |
| - sulphur |
1,2–2,0 |
| Corrosive influence on metals |
Withstands |
| Saponification number, mg КОN/g, not less than |
18 |
| Density at 20°С, kg/m³ |
800–930 |
|
