How To Test The Oxygen Concentration Most Securely？

What is oxygen Index test?

Measuring the Minimum Oxygen Concentration to Support Candle-Like Combustion of Plastics (Oxygen Index) ASTM D2863. Scope: ASTM D2863 is a method to determine the minimum concentration of oxygen in an oxygen/nitrogen mixture that will support a flaming burn in a plastic specimen.

I.  Intelligent Full-automatic Touch Screen Control Oxygen Index Tester Product Advantages:
1. Full-color touch screen control, simply set the oxygen concentration on the touch screen, the program will automatically adjust to the oxygen concentration balance and emit a squeaking sound prompt, eliminating the need to manually adjust the oxygen concentration；
2. The use of stepping proportional valves has greatly improved the flow control accuracy. Closed-loop control is used. During the test, the oxygen concentration drift program is automatically adjusted back to the target value, avoiding the disadvantages of the traditional oxygen index analyzer not adjusting the oxygen concentration in the test. Improve the test accuracy.

II.  Intelligent Full-automatic Touch Screen Control Oxygen Index Tester main technical parameters

1. Using imported oxygen sensor, the digital display does not need to calculate the oxygen concentration, the accuracy is higher and more accurate, the range is 0-100%

2. Digital resolution: ±0.1%

3. Measurement accuracy: 0.1

4. Touch screen setup program automatically adjusts oxygen concentration

5.One-key calibration accuracy

6. One-touch ratio concentration

7. Oxygen concentration stable automatic alarm sound

8. With timing function

9. Can store experimental data

10. Can query historical data

11. Clear historical data

12. Choose whether to burn 50mm

13. Air source failure prompt

14. Oxygen sensor failure tips

15. Oxygen and Nitrogen Misconnection Prompt

16.Oxygen sensor aging tips

17. Standard oxygen concentration input

18.The diameter of the combustion cylinder can be set (two common specifications are optional)

19.Flow adjustment range: 0-20L/min (0-1200L/h)

20.Quartz glass cylinder: Choose one of two sizes (internal diameter ≥75mm or internal diameter ≥85mm)

21. Gas flow rate in combustion cylinder: 40mm±2mm/s

22. Overall dimensions: 650mm×400×830mm

23.Pressure gauge accuracy level 2.5, resolution: 0.01MPa

24.Test environment: ambient temperature: room temperature ~ 40 °C;, relative humidity: ≤ 70%;

25.Input pressure: 0.25-0.3MPa

26.Working pressure: Nitrogen 0.15-0.20Mpa Oxygen 0.15-0.20Mpa

27. Sample holders can be used for soft and hard plastics, various types of building materials, textiles, fire doors, etc.

28. Propane (butane) ignition system, the ignition nozzle is made of a metal pipe, and the end has a nozzle with an inner diameter of Φ2±1mm, which can be bent freely. Can be inserted into the combustion cylinder to ignite the sample, flame length: 16±4mm, size 5mm-60mm can be freely adjusted,

29. Gas: Industrial nitrogen, oxygen, purity >99%; (customer-supplied / normal gas station industrial oxygen purity is generally between 99.2% -99.3%).

30.Power Requirements: AC220 (+10%) V, 50HZ
31.The maximum power used: 150W
32.Self-supporting material sample holder: It can be fixed on the axial position of the  combustion cylinder and can vertically clamp the sample.
33. Non-self-supporting material sample holder: The two vertical sides of the sample can be fixed on the frame at the same time (Optional / applied to soft and non-self-supporting materials such as textiles

refer to more details: Intelligent Automatic Oxygen Index Tester ASTM D 2863 ISO 4589-2 ISO 4589-3 NES 714 NES 715 (labtesting-equipment.com)

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