What is a limiting oxygen index meter?

 

The Extreme Oxygen Index Meter works by placing a sample in a quartz glass burner to which pure oxygen is added. Once the sample is ignited, the oxygen inside the burner is maintained at a specific concentration, typically 21% or 40%. During combustion, the heat generated by combustion causes spontaneous combustion of the sample and the combustion reaction continues until the sample is completely burned out or the oxygen inside the burner is consumed.

 

During combustion, the LOI value can be calculated by measuring the change in oxygen concentration. As the material burns, the oxygen concentration decreases over time until it is consumed. Based on the change in oxygen concentration during combustion, the LOI value of a material can be calculated.

 

The Limiting Oxygen Index Meter is widely used in construction, automotive, electronics, aerospace and other fields. It can be used to evaluate the combustion performance of various materials such as plastics, rubber, insulation materials, textiles, wood, etc. The measurements are often used to develop safety standards and specifications for materials to ensure that products do not cause fires or other safety problems during use and transportation.