1. Product introduction
Used to determine the volume ratio of oxygen required during polymer combustion: determine the minimum oxygen concentration (also known as the oxygen index), expressed as a percentage of volume, in the mixture of oxygen and nitrogen under specified conditions to maintain the combustion of the sample.

2. standard of execution
GB／T2406—2008
GB／T5454—1997

3. Main technical parameters
1）Ambient temperature: room temperature ~40℃; Relative humidity: ≤70%;
2）Power supply voltage: AC220V 0.1kw;
3）Gas source: nitrogen and oxygen for industrial use, purity > 99%;
4）Input pressure: 0.25~ 0.5mpa; Working pressure: 0.1~ 0.2mpa;
5）Voltage stabilization accuracy: ≤0.001 Mpa/min; Measurement accuracy: 0.2;
6）Response time: < 5s;
7）Digital resolution: ±0.1%;
8）External dimensions: length 0.36× width 0.28× height 0.54 m; Weight: 24kg.