No entries at present. No entries at present. The ratio of the specific weight of air or a gas to that of dry air at the same temperature and pressure. The weight of air or gas per unit of volume at specified conditions of temperature and pressure. Unless otherwise stated, it usually refers to conditions at the compressor intake.
Standard conditions vary by the industry and specifying authority.
A factor expressing deviation of a gas from perfect gas laws. For practical purposes, at the pressures and temperatures normally encountered in AIR compressors, air can be considered to follow the perfect gas laws. No entries at present. A compressor that operates at an intake pressure below atmospheric and usually discharges at atmospheric pressure or a little higher. No entries at present.