What Influences Critical Limiting Oxygen Index Test Apparatus

1, Calibrate oxygen index text apparatus

Common used oxygen limiting index test apparatus uses an oxygen analyzer to directly measure the oxygen concentration and then display data. In order to ensure the accurate results, every time before testing, we have to calibrate it in accordance with the requirements and the procedure is carried out using the standard gas.

2, Use fume hood

There will be great amount of toxicity gas because of the material burning which can not only pollute the environment but also harm to human body, thus according to the standard, the test should be carried out in a fume hood.

3, Clean combustion residue

Oxygenindex test apparatus bottom base is filled with diameters of 3 ~ 5 mm glass beads with the filling height of 80 ~ 100mm to fully mix gas.

4, Sample requirements

There are strict requirements on various aspects of sample. To ensure test results accuracy, we should strictly ensure sample shape, size, orientation direction, surface and the internal conditions. 

 

Conclusion

Oxygen index test can be used for general quality control as a way to provide combustion characteristics of materials burning in the lab. But it cannot be used to assess the actual fire hazard while it can only be evaluated as an element of fire risks. Oxygen index test method has several advantages such as good repeatability, high accuracy, good reproducibility, ease of testing and wide application thus has become an effective means to evaluate the combustion level.

For more information of oxygen limiting index test apparatus, you can visit www.qinsun-lab.com or contact us at any time. QINSUN Instruments is China professional textile testing instruments manufacturer.