Screw air compressor oil consumption: 5ppm, meaning 5 parts oil per million parts air.
Подробности дела
Answer: The oil consumption of an oil-injected screw air compressor is generally expressed in ppm.
The concept of ppm: It is one millionth of a mass ratio. 5ppm oil content means that the oil content in every 1m³ mass of air inhaled is 5 millionths of its mass.
