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The Oxygen Index is, perhaps, the most economical and precise quality control test of combustible materials. Its ease of use together with high levels of precision has made this technique a primary characterising and quality control tool to the plastic and electric cable industries and it has been specified by several military and transport groups. The technique measures the minimum percentage of oxygen in the test atmosphere that is required to marginally support combustion. Note that BS ISO 4589 supersedes BS 2782 Part 141.

Oxygen index tester used to determine the polymer to the desired oxygen concentration (volume percent) in the combustion process. The instrument is simple, easy to operate, through the sensor (import) measurement, the figures showthe results,do not have to be calculated by the formula. This machine can be used as combustion performance as a means of identification of polymer can be used as a research tool in order to obtain a better understanding of the combustion process of the polymer.

This Oxygen index tester applies to the burning of plastics, rubber, foam and other materials performance test, its results are accurate, the reproducibility is good. Research, test equipment essential for the production of flame retardant material.

The Limiting Oxygen Index Tester under the conditions specified, the materials in the minimum oxygen concentration required for combustion of oxygen and nitrogen mixed gas stream. To represent the oxygen percentage of the volume occupied by the value. The oxygen index is high that the material is nonflammable, low oxygen index of said material is highly flammable and is generally believed that the oxygen index of 27 is a flame retardant materials.

parameters:

Combustion tube inner diameter	100mm
High combustion tube	450mm
Flowmeter accuracy	2.5 grade
Pressure gauge accuracy	2.5 grade
Gas source	GB3863 prescribed oxygen,GB3864 prescribed nitrogen
Test environment	Temperature:10—35℃ ,Humidity:45[%]—75[%]
Input pressure	0.2—0.3Mpa
Working pressure	0.05—0.15Mpa
Sample type	Self-supporting material and non-self-supporting material
Display	Digital