- (a) Depth of air cell (air between the shell membranes). Air cell depth is a measurement from its top to bottom, when the egg is held air cell upward.
- (b) Free air cell. An air cell that is mobile.
- (c) Bubbly air cell. A ruptured air cell resulting in small air bubbles in the albumen.
Note: Authority cited: Sections 407 and 27531, Food and Agricultural Code. Reference: Section 27531, Food and Agricultural Code.