(The box material is divided into two types: steel plate electrostatic spraying and frosted stainless steel, with a price difference of 500 yuan. If you need to place an order, please confirm the price in advance.)
1、 Applicable scope
It is applicable to the determination of combustion performance of plastics, rubber, fiber, foamed plastics, film, film, textile and other materials
2、 Related technical parameters
1. Adopting imported oxygen sensors, the digital display of oxygen concentration does not require calculation, resulting in higher and more accurate accuracy, with a range of 0-100%?
2. Digital resolution: ± 0.1%
3. Overall measurement accuracy: 0.4 level
4. Flow regulation range: 0-10L/min (60-600L/h)
5. Response time: ＜ 5S
6. Quartz glass cylinder: inner diameter ≥ 75mm? 480mm high
7. Gas flow rate inside the combustion cylinder: 40mm ± 2mm/s
8. Pressure gauge accuracy level 2.5, resolution: 0.01MPa

9. Flow meter: 1-15L/min (60-900L/H) adjustable, accuracy level 2.5
10. Test environment: ambient temperature: room temperature~40 ℃;, Relative humidity: ≤ 70%;
11. Input pressure: 0.2-0.3MPa
12. Working pressure: Nitrogen 0.05-0.15Mpa? Oxygen 0.05-0.15Mpa oxygen/nitrogen mixed gas inlet: including pressure regulating valve, flow regulating valve, gas filter, and mixing chamber.
13. Can sample clips be used for soft and hard plastics, textiles, fire doors, etc?
14. Propane (butane) ignition system, flame length 5mm-60mm can be freely adjusted?
15. Gas: Industrial nitrogen and oxygen, purity>99%; (Note: The gas source and connecting head are provided by the user).
16. Tips: When testing the oxygen index tester, it is necessary to use one cylinder of industrial grade oxygen/nitrogen at least 98% as the gas source. As the above gases are high-risk transportation materials, they cannot be provided as accessories for the oxygen index tester and can only be purchased from the user's local gas station. (To ensure the purity of the gas, please purchase it from a reputable local gas station)
17. Power requirements: AC220 (+10%) V, 50HZ
18. Power consumption: 50W
19. Igniter: Made of a metal tube with a nozzle with an inner diameter of 2 ± 1mm at the end, it can be inserted into the combustion cylinder to ignite the sample. The flame length is 16 ± 4mm and the size is adjustable
20. Self supporting material specimen clamp: able to be fixed on the axial position of the combustion cylinder and vertically clamp the specimen
21. Non self-supporting material sample holder: capable of simultaneously fixing two vertical edges of the sample to the frame (suitable for optional materials such as textile film)
3、 Chassis structure
1. Control box: It is processed and formed using CNC machine tools, and the static electricity of the steel plate spray box is sprayed. The control part and the experimental part are controlled separately.
2. Combustion cylinder: High temperature resistant quartz glass tube (inner diameter ¥ 75mm, length 480mm)? Inner diameter of outlet: 40mm
3. Sample fixture: Self supporting fixture that can vertically clamp the sample; (Optional non self-supporting sample holder), two sets of sample clamps meet different test requirements; Style clip insertion type, making it easier to place styles and style clips
4. The diameter of the pipe hole at the tail end of the long rod igniter is ¥ 2 ± 1mm, and the flame length of the igniter can be adjusted arbitrarily (5-50) mm.
4、 Applicable standards
Design standard: GB/T 2406.2-2009
Compliant with standard: ISO 4589-2-2017, GB/T5454，GB/T10707-2008，GB/T 8924-2005，GB/T 16581-1996，NB/SH/T 0815-2010，TB/T 2919-1998，IEC 61144-1992，ISO 15705-2002，ISO 4589-2-2017。