Machine Model: JF-3 Digital Oxygen Index Tester

I. Scope of Application:

Flame resistance testing for materials such as plastic, rubber, fiber, foam plastic, soft film, thin film, and textiles

II. Main Technical Parameters:

1. Utilizing imported oxygen sensors, digital display of oxygen concentration eliminates the need for calculation, offering higher precision and accuracy, with a range of 0 - 99%

2. Digital Resolution: ±0.1%

3. Overall Measurement Accuracy: 0.4 grade

Flow Adjustment Range: 0-10 L/min (60-600 L/h)

5. Response Time: <5S

6. Quartz Glass Tube: Inner Diameter ≥ 75mm, Height 300mm

7. Gas flow rate inside the combustion chamber: 40mm ± 2mm/s, Total height of combustion chamber: 450mm

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

Flow meter: adjustable from 1-15L/min (60-900L/H), accuracy of 2.5 grade

10. Test Environment: Room temperature to 40°C; Relative humidity: ≤70%

11. Input Pressure: 0.2-0.3 MPa

12. Working Pressure: Nitrogen 0.05-0.15 Mpa, Oxygen 0.05-0.15 Mpa. Oxygen/Nitrogen Mixed Gas Inlet: Includes pressure regulator, flow control valve, gas filter, and mixing chamber.

13. Sample clamps are suitable for soft and hard plastics, textiles, fire doors, etc.

14. Ignition System, flame length adjustable from 5mm to 60mm

15. Gases: Industrial nitrogen, oxygen, purity > 99% (customer supplied).

16. Power Requirements: AC 220 (+10%) V, 50 Hz

17. Power Consumption: 50W

Igniter: Made of a metal tube with a nozzle at the end featuring an internal diameter of Φ2±1mm, capable of inserting into the combustion tube to ignite the sample. Flame length: 16±4mm, adjustable in size.

19. Self-supporting Material Sample Clamp: Capable of being fixed at the center of the combustion tube axis and vertically clamping the sample

20. Non-self-supporting Material Sample Clamp: Capable of simultaneously fixing both vertical edges of the sample to the frame

Section 3: Enclosures and Partial Structures:

Control Box: Machined into shape by CNC machine tools, the steel plate box body is electrostatically spray-painted. The control section and the test section are separately controlled.

2. Combustion Tube: High-temperature-resistant, high-quality quartz glass tube (OD ￠75mm, Length 300mm) with Export ID: φ40mm

3. Blender: Utilizes glass beads for filling, to uniformly mix oxygen and nitrogen. (Bead φ4.5mm, filling height 95mm, one bag)

4. Sample Fixture: Self-supporting fixture that can vertically hold the sample; (optional non-self-supporting sample stand), two sets of sample fixtures to meet different testing requirements; Oxygen Index Tester Sample Fixture is plug-in type, making it easier to place the sample and the fixture.

5. Standard spare glass tube included to prevent accidental damage, meeting continuous testing requirements; Igniter rod end tube hole diameter φ2±1mm, flame length of the igniter adjustable from 5-50mm.

Four: Design Standards: GB/T 2406.2-2009, GB/T 2406.1-2008

Complies with standards: ASTM D 2863, ISO 4589-2, NES 714, GB/T 5454, GB/T 10707-2008, GB/T 8924-2005, GB/T 16581-1996, NB/SH/T 0815-2010, TB/T 2919-1998, IEC 61144-1992, ISO 15705-2002, ISO 4589-2-1996

Five: Packing List

1. Main Unit   1 pc

2. Combustion Tube                          1 Set

Igniter                          1 piece

4. Power Cord   1 pc

5. Spare Glass Tube                  1 piece

6. Glass Beads                      1 bag (placed inside the combustion column)

7. Nylon Tube Φ4                      1.2 meters (connects the combustion column to the main unit)

8. O-rings                           Some quantities

9. Pointed Tip Sample Clamp                   1 Set

10. Metal Mesh                          1 piece (placed inside the combustion column)

11. Stainless Steel Exhaust Plate                  1 pc

12. Rubber Hoses                   2 pieces

13. M10x1 socket head screw              1 pc. (for connecting to the inner tube of the combustion column)

14. M10x1 Connector Nut              1 pc. (for connecting to the main unit)

15. Instruction Manual                          1 copy

16. Non-Supported Sample Holder                  1 set (optional)

Tips: During the oxygen index tester test, one bottle of industrial-grade oxygen/nitrogen with a purity of not less than 98% is required as a gas source. Since these gases are hazardous for transportation, they cannot be provided as accessories for the oxygen index tester and must be purchased locally at a gas station. (To ensure the purity of the gas, please purchase from a local authorized gas station.)