Critical Oxygen Index Apparatus - Double Walled Flame Resistant Glass Column | Digital Temperature Control, Astm Compliant

Critical oxygen index apparatus is used for determining the minimum percentage of oxygen required to just support flaming combustion of a material at room temperature in fta mode or at higher temperature (up to 400oc) in hfta mode.

The sample is burned in the mixture of nitrogen and oxygen, and the percentage of oxygen required just to support the flaming combustion is recorded through an imported oxygen analyzer, which gives direct oxygen readings.

The apparatus also has a double walled test column of flame resistance glass of 75mm dia suitable for testing different size of samples in fta or hfta mode.

A digital temperature-indicating controller provided with the instrument controls the temperature for hfta mode. The instrument is manufactured as per the ASTM specification and also confirms various other international standards