Oil content of air compressor gas

1. The mass of oil (including oil droplets, suspended particles, and oil vapor) contained in a unit volume of compressed air is converted to an absolute pressure of 0.1MPa, a temperature of 20°C, and a relative humidity of 65%. Unit: mg/m3 (refers to absolute value).

2. PPM is a symbol indicating the content of trace substances in a mixture, referring to parts per million or parts per million (parts by weight PPMw and volume ratio PPMv). (Refers to ratio)