| Test Temperature | Adjustable from room temperature to 150°C |
| Temperature Deviation | ±1°C |
| Oxygen Concentration (Oxygen Index) | Direct digital display reading, resolution: 0.1% |
| Air Supply Pipeline | Flow meter, pressure gauge, and needle valve |
| Measuring Range | 0-100% O₂, resolution: 0.1% vol/1L/min |
| Measurement Accuracy | Class 2.5 |
| Combustion Cylinder | Quartz glass, inner diameter: 75mm, height: 450mm |
| Gas Flow Rate (Top of Cylinder) | 90mm ±10mm/s |
| Gas Flow Rate (Inside Cylinder) | 40mm ±2mm/s |
| Input Pressure | Adjustable from 0.25 to 0.5 MPa |
| Flow Meter | One for oxygen and one for nitrogen, range: 1-10L/min, resolution: 0.1L/min |
| Gas Inlet System | Includes pressure regulator valve, flow regulating valve, and mixing chamber |
| Ignition System | Dedicated propane hand-held electronic igniter, copper tube diameter: 2.0mm, flame spray: 16mm ±1mm downward |
| Specimen Clamps | One set for hard self-supporting materials and one for soft materials |
| Heating System | Nickel-chromium alloy rapid heating wire, wound on a glass tube for uniform temperature distribution |
| Temperature Measurement | Mineral-insulated heater thermocouple, accuracy: ±1.5mm |
| Gas Source | Oxygen and nitrogen with purity above 98% (provided by the buyer) |
| Power Requirements | AC 220V ±10%, 50Hz |
| Dimensions | L530 × W350 × H605 mm |
