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What you need to know about the advantages and disadvantages of Oxygen Index Tester?

2023-04-20 09:53

The Oxygen Index Tester is an instrument used to measure the combustion properties of materials in a mixture of oxygen and nitrogen. It can evaluate the flame resistance and self-extinguishing properties of materials and provide reference data for fire protection design. This article will introduce the advantages and disadvantages of the Oxygen Index Tester to help you better understand this instrument.


The advantages of Oxygen Index Tester are:


- The test method is simple and easy to operate, just put the specimen into the test tube, adjust the flow of oxygen and nitrogen, ignite the specimen, observe the burning situation and calculate the oxygen index.

- The test results are accurate, reliable, repeatable and reflect the true combustion performance of the material.

- The test range is wide, applicable to various solid materials, such as plastic, fiber, rubber, wood, etc.

- The test cost is low, the equipment is easy to maintain, and no special environmental conditions are required.

Oxygen Index Tester


Disadvantages of Oxygen Index Tester are:


- The test process will produce toxic and harmful combustion products, such as carbon monoxide, carbon dioxide, dioxins, etc., which are harmful to humans and the environment. Therefore, appropriate protective measures, such as wearing a mask, glasses, etc., and in a well-ventilated area, are required for the test.

- The test results are affected by various factors, such as shape, size, thickness, density and moisture content of the specimen. Therefore, it is necessary to standardize the specimens before testing and to ensure that the conditions are the same for each test.

- The test results do not fully reflect the performance of the material in the actual fire, because there are other factors in the actual fire, such as temperature, pressure, wind speed, etc. Therefore, the test results need to be analyzed in conjunction with other relevant data and experience when using the test results.


In summary, the Oxygen Index Tester is an effective instrument for measuring the combustion properties of materials, but there are some limitations. It is necessary to pay attention to its advantages and disadvantages when using it, and to make a reasonable selection and application according to the specific situation.

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