The Oxygen Index is a quality control test of combustible
materials. Its ease of use together with high levels of precision
has made this technique a primary characterizing and quality
control. The technique measures the minimum percentage of
oxygen in the test atmosphere that is required to marginally
support combustion.
The oxygen tester is used to check combustion of plastic
materials such as polymers, cables, rubber, nylon, laminates,
fabrics etc.
ISO 4589-2 and ASTM D2863, gives the procedure for
determination of Limited oxygen index of materials.

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