Scope of Application

【Operating Instructions】

Suitable for determining the combustion performance of materials such as plastics, rubber, fibers, foam plastics, sheets, films, and textiles.

YS-JF-3 Oxygen Index Tester

【Scope of Application】
Suitable for determining the combustion performance of materials such as plastics, rubber, fibers, foam plastics, sheets, films, and textiles.

【Technical Specifications】

1. Oxygen Sensor: Imported oxygen sensor with digital display; no manual calculation required.

• Range: 0 — 100%

• Accuracy: Higher precision and accuracy.

2. Digital Resolution: ±0.1%

3. Overall Measurement Accuracy: Class 0.4

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

5. Response Time: < 5s

6. Quartz Glass Cylinder: Inner Diameter ≥ 75mm, Height 480mm

7. Gas Velocity in Combustion Cylinder: 40 ± 2 mm/s

8. Flowmeter: 1 - 15 L/min (60 - 900 L/h) adjustable, Accuracy Class 2.5

9. Test Environment:

• Ambient Temperature: Room Temp ～ 40℃

• Relative Humidity: ≤ 70%

10. Input Pressure: 0.2 - 0.3 MPa (Note: Do not exceed this pressure).

11. Working Pressure:

• Nitrogen: 0.05 - 0.15 MPa

• Oxygen: 0.05 - 0.15 MPa

• Oxygen/Nitrogen Mixture Inlet: Includes pressure regulating valve, flow control valve, gas filter, and mixing chamber.

12. Specimen Holders: Suitable for soft and rigid plastics, textiles, fire doors, etc.

13. Ignition System: Propane (Butane) ignition system.

• Flame Length: Adjustable freely from 5mm to 60mm.

14. Gas Supply: Industrial Nitrogen and Oxygen, Purity > 99%.