The limiting oxygen index (LOI) is the minimum concentration of oxygen, expressed as a percentage, that will support combustion of the polymer. It is measured by passing a mixture of O2 and N2 over a burning specimen, and reducing the O2 level until a critical level is reached. [1]
- ^ Definition taken from Principles of Polymer Engineering (2nd edition) by N.G. McCrum , C.P. Buckley, and C.B. Bucknall
www.saassociates.com/pdf/criticaloxygen.pdf
 | This chemistry-related article is a stub. You can help Wikipedia by expanding it. |