TU 38.1011187-88, amendment 1-4

VM-5s - are developed by deep cleaning from sulphurous or low-sulphurous technology of vacuum distillation, nefty with application. Vacuum VM-5 oils and VM-5s are applied as working liquid in high-vacuum paromaslyany pumps (providing lower residual pressure in vacuum systems in comparison with vacuum VM-1 and VM-1S oils), and also, in certain cases, in mechanical pumps with oil consolidation of the interfaced details.

Index nameNorm
Kinematic viscosity mm2 /s  
- At 20°С -
- At 50°С 60,0-74,0
- At 100°С -
Acid number, mg КОН / g, not more than 0,2
Temperature, °С:  
- Open cup flash point, °С, not less than 230
- Pour point, not more than -12
Color, CNT units, not more than 0,5
Fractional composition of oil, °С:  
- The temperature of the beginning of the distillation, not less than -
- 90% of the oil distilled at a temperature not higher than -
Vapor pressure at 20°С, Pa, not more than Not more than 2,7·10-5
Density at 20°С, kg/m3, not more than 900


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