oxygen deficient atmosphere definition

oxygen deficient atmosphere means an atmosphere containing less than 19.5% oxygen;
oxygen deficient atmosphere means an atmosphere containing less than 19.5 percent oxygen by volume.
oxygen deficient atmosphere means an atmosphere in which there is less than 18 per cent by volume of oxygen at a pressure of one atmosphere or in which the partial pressure of oxygen is less than 135 mm Hg; (air à faible teneur en oxygène)

More Definitions of oxygen deficient atmosphere

oxygen deficient atmosphere means an atmosphere with an oxygen content below 19.5% by volume.
oxygen deficient atmosphere means an atmosphere that causes an oxygen partial pressure of 100 millimeters of mercury or less in the freshly inspired air saturated with water vapor in the upper portion of the lungs;
oxygen deficient atmosphere means an atmosphere having an oxygen concentration of less than 19.5 percent by volume.
oxygen deficient atmosphere means an atmosphere containing less than 19.5 percent oxygen by volume. "Oxygen enriched atmosphere" means an atmosphere containing more than 23.5 percent oxygen by volume. "Permit-required confined space (permit space)" means a confined space that has one or more of the following