Oil HA-30 (GOST 5546-86) - oil for refrigerating machines, a mixture of distillate and residual petroleum oils. It is used in refrigeration units of provision and industrial plants operating on ammonia. The flocculation temperature is - 40°С.

Physical and chemical indicators of XA-30 oil GOST-5546-86
| Name of the indicator | Norm GOST (TС) |
|---|---|
| Kinematic viscosity, mm²/sec | |
| at 20°С, not more than | 150 |
| at 50°С | 28 - 32 |
| Acid number, mg КОН/g, not more than | 0,05 |
| Temperature, °С: | |
| in the open crucible, not less than | 185 |
| pour point, not higher than | -38 |
| Ash, %, not more than | 0,004 |
| Stability against oxidation, not more than | |
| mass fraction of a deposit, %: | 0,02 |
| acid number, mg КОН / g | 0,5 |
| Colour, units of COP, not more than | - |
| Corrosion | |
| on copper plates | Absence |
| on steel plates | Absence |

