JF-3 Oxygen Index Tester
1、 Scope of application:
It is applicable to the determination of combustion performance of plastics, rubber, fiber, foamed plastics, film, film, textile and other materials
2、 Main technical parameters:
1. Adopting oxygen sensors imported from the UK, 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. Sensor measurement accuracy of 0.1 level
4. Measurement accuracy of the whole machine: 0.4 level*
5. Flow regulation range: 0-10L/min (60-600L/h)
6. Response time:<5 seconds
7. Combustion cylinder: inner diameter ≥ 75mm, total height of combustion cylinder 450mm
8. Gas flow velocity inside the combustion cylinder: 40mm ± 10mm/s
9. Pressure gauge accuracy level 2.5, resolution: 0.01MPa
10. Flow meter: adjustable from 1-15L/min (60-900L/H), test environment: ambient temperature: room temperature to 40 ℃; Relative humidity: ≤ 70%;
11. Input pressure: 0.2-0.3MPa
12. 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.
13. The sample holder can be used for soft and hard plastics, textiles, fire doors, etc
14. Propane (butane) ignition system, flame length adjustable from 5mm to 60mm
15. Gas: Industrial nitrogen, oxygen, purity>99%; (User provided).
16. Power requirements: AC220 (+10%) V, 50HZ
17. High power consumption: 50W
18. 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 and the size is adjustable
19. Self supporting material sample clamp: can be fixed at the axis position of the combustion cylinder and can vertically clamp the sample
20. Non self-supporting material specimen clamp: capable of fixing both vertical edges of the specimen to the frame simultaneously
3、 Chassis and Partial Structure:
1. Control box: processed and formed by CNC machine tools, electrostatic spraying, beautiful, rust proof and anti-corrosion. Separate control of control and experimental parts
2. Combustion cylinder: High temperature resistant high-quality quartz glass tube (inner diameter ¢ 75mm, length 300mm), outlet inner diameter: φ 40mm
4. Mixer: Fill with glass beads to evenly mix oxygen and nitrogen. (Bead diameter 4.5mm, filling height 95mm, one bag)
5. Sample fixture: self-supporting fixture that can vertically clamp the sample; (Optional non self-supporting style frame), two sets of style clips meet different testing requirements; Style clip plug-in type, making it easier to place styles and style clips
7. Standard spare glass tube to prevent accidental damage and meet uninterrupted testing requirements; The diameter of the tail pipe hole of the long rod igniter is ¢ 2 ± 1mm, and the flame length of the igniter can be adjusted freely (5-50mm)
5、 Design standards:GB/T 2406.2-2009 GB/T 2406.1-2008
Compliant with 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
6、 Packing list:
1. Host 1 unit
2. One set of combustion cylinder
3. One igniter
4. One power cord
5. One spare glass tube
6. 1 bag of glass beads (placed inside the combustion column)
7. Nylon tube with a diameter of 1.2 meters (connecting the combustion column to the main engine)
8. Several sealing rings
9. One set of pointed sample clamps
10. One metal mesh (placed inside the combustion column)
11. One plastic vent plate
12. Two rubber tubes
13. One M10 × 1 internal joint screw (connected to the combustion column)
14. 1 M10 × 1 connector nut (connected to the host)
15. One copy of the instruction manual
16. One set of non self-supporting specimen clamps (optional)

