Introduction:

The oxygen index tester complies with national standards such as GB/T2406-2008 for testing the combustion performance of plastics and GB/T5454 for testing the combustion performance of textiles. It is used to evaluate the combustion performance of polymers under specified test conditions, that is, to determine the volume percentage concentration of the lowest oxygen that can maintain combustion of polymers.

Scope of application:

It is applicable to the determination of combustion performance of plastics, rubber, fiber, foam plastics, film, film, textile and other materials.

Design standards:

GB/T 2406.2-2009

GB/T 2406.1-2008

JF-3 Digital Oxygen Index Tester Applicable Standards:

ASTM D 2863, ISO 4589-2, NES 714 GB/T 5454 GB/T 10707 GB/T 8924-2005 GB/T 16581-1996 NB/SH/T 0815-2010 TB/T 2919-1998 IEC 61144-1992 ISO 15705-2002 ISO 4589-2-1996

Technical indicators:

1. Adopting imported oxygen sensors, the digital display of oxygen concentration does not require calculation, with higher and more accurate precision and a range of 0-100%

2. Digital resolution: ± 0.1%

3. Measurement accuracy: 0.4 level

4. Flow regulation range: 0-10L/min (60-600L/h)

5. Response time: ＜ 5S

6. Combustion cylinder: inner diameter ≥ 75mm, total height of combustion cylinder 450mm

7. Gas flow velocity inside the combustion cylinder: 40mm ± 10mm/s

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

9. Flow meter: adjustable from 1-15L/min (60-900L/H), test environment: ambient temperature: room temperature to 40 ℃;, Relative humidity: ≤ 70%；

10. Input pressure: 0.2-0.3MPa

11. Working pressure: Nitrogen 0.1-0.15Mpa, Oxygen 0.1-0.15Mpa, Oxygen/Nitrogen mixed gas inlet: including stabilizing valve, flow regulating valve, gas filter, and mixing chamber.

12. The sample holder can be used for soft and hard plastics, textiles, fire doors, etc

13. Propane (butane) ignition system, flame length adjustable from 5mm to 60mm

14. Gas: Industrial nitrogen, oxygen, purity>99%; (User provided).

15. Power requirements: AC220（+10% ）V、50HZ

16. Maximum power consumption: 50W

17. Igniter: It is made of a metal tube and has a nozzle with an inner diameter of Φ 2 ± 1mm at the end, which can be inserted into the combustion cylinder to ignite the sample. The flame length is: 16 ± 4mm, adjustable size

18. Self supporting material sample clamp: can be fixed at the axis position of the combustion cylinder and can vertically clamp the sample

19. Non self-supporting material specimen clamp: capable of fixing both vertical edges of the specimen to the frame simultaneously