Limiting oxygen index: Difference between revisions

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Created page with 'The '''limiting oxygen index (LOI)''' is the minimum concentration of oxygen, expressed as a percentage, that will support combustion of the polymer. It is measure...'
 
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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 O<sub>2</sub> and N<sub>2</sub> over a burning specimen, and reducing the O<sub>2</sub> level until a critical level is reached.
 
 
<ref> Definition taken from Principles of Polymer Engineering (2nd edition) by N.G. McCrum , C.P. Buckley, and C.B. Bucknall </ref>