What is oxygen index
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Oxygen index textile combustion properties
Oxygen index oxygen index is referred to as OI. It is the lower oxygen concentration required to maintain stable combustion of the sample in the oxygen and nitrogen mixed gas flow under specified conditions, expressed as the percentage of the volume occupied by oxygen.
Oxygen index is a method to evaluate the relative flammability of textiles, plastics and other polymer materials. This method is very effective in judging the difficulty of materials burning when they come into contact with flames in the air, so it has attracted the attention of various countries. . The corresponding national standards for the oxygen index method that China has promulgated are GB 2406-80 (plastics) and GB 5454-85 (textiles).
A high oxygen index means that the material is not easy to burn, and a low oxygen index means that the material is easy to burn. It is generally considered that an oxygen index 27 is a refractory material. Material.
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