Simpler Oxygen Index Testing
Oxygen concentration can be set directly on the touch screen, reducing repeated manual gas-flow adjustment.
Closed-loop control automatically brings oxygen concentration back to the target value, helping reduce test drift.
A stable-concentration beep prompt lets the operator know when the test condition is ready.
One-key calibration and one-key concentration ratio setting simplify routine operation.
Historical test data can be stored, queried, and cleared for easier laboratory record management.
Fault prompts help identify gas source issues, oxygen sensor problems, wrong oxygen/nitrogen connection, and sensor aging.
A Smarter Oxygen Index Tester For Plastics, Textiles, Building Materials, And Fire Doors
Oxygen index testing can become slow and unstable when operators must manually balance oxygen and nitrogen flow. If the oxygen concentration drifts during the test, your result may become difficult to trust. This automatic touch screen oxygen index tester helps you set the target concentration, automatically adjust the gas ratio, monitor faults, store data, and run tests with clearer prompts. For labs testing plastics, building materials, textiles, or fire doors, it gives you a more repeatable way to evaluate combustion behavior.
Touch Screen Oxygen Index Tester With Automatic Control

An intelligent oxygen index tester with automatic concentration control, touch screen operation, and closed-loop adjustment.

A laboratory combustion testing solution for plastics, building materials, textiles, fire doors, and other samples.
Advantage Of Oxygen Index Tester
Your testing work may involve plastics, textiles, building materials, fire doors, or formulation comparison. This tester helps you control oxygen concentration more automatically and reduce manual gas-ratio errors.

Test soft and hard plastics and evaluate how material combustion behavior changes under different oxygen concentrations.

Oxygen index data can support flame performance evaluation for various construction materials.

The optional non-self-supporting specimen clamp is suitable for textiles and other soft materials that cannot stand by themselves.

Relevant fire-door material samples can be tested under controlled oxygen and nitrogen conditions.
Stable Oxygen Concentration During Testing
Traditional oxygen index testers often require manual flow adjustment before the test, and once concentration drifts, the operator may not be able to correct it in time. That creates unstable results and wastes samples. With closed-loop control and a stepping proportional valve, this tester automatically corrects oxygen concentration drift during testing, helping your lab reduce operator dependence and improve result repeatability.

Why Choose FOLISTECH?


When you choose FOLISTECH Oxygen Index Tester, you can confirm your sample type, combustion cylinder diameter, specimen clamp requirement, gas preparation, ignition workflow, and testing standard before ordering. Your samples may be rigid plastic, flexible textile, building material, or fire-door material. We help you match the configuration to the way you actually test, so your laboratory can start with fewer setup problems.
Application For Your Oxygen Index Testing Workflow

If you test soft or hard plastic materials, you need stable oxygen concentration control to compare flame performance between formulations or batches. The automatic adjustment workflow helps your team reduce manual gas-ratio errors.

If your sample cannot stand vertically by itself, you may need the optional non-self-supporting specimen clamp. This lets your lab fix two vertical edges of the specimen on the frame for softer materials such as textiles.

If your project involves building materials or fire-door materials, oxygen index data can help your team compare combustion behavior under controlled oxygen and nitrogen conditions.
Product Details Tab
- Applicable Standard
- Technical Specifications
| Standard | Description |
| GB/T 2406.2-2009 | Design standard for oxygen index testing |
| Item | Specification |
| Oxygen Sensor | Imported oxygen sensor; digital oxygen concentration display without calculation; range 0-100% |
| Digital Resolution | ±0.1% |
| Measurement Accuracy | Class 0.1 |
| Oxygen Concentration Adjustment | Touch screen setting; program automatically adjusts oxygen concentration |
| Standard Oxygen Concentration Input | Supported |
| Combustion Cylinder Diameter Setting | Can be set; two common specifications optional |
| Flow Adjustment Range | 0-20 L/min (0-1200 L/h) |
| Quartz Glass Cylinder | Choose one of two specifications: inner diameter ≥75 mm or inner diameter ≥85 mm |
| Gas Flow Velocity in Combustion Cylinder | 40 mm±2 mm/s |
| Overall Dimensions | 650 mm x 400 mm x 830 mm |
| Pressure Gauge Accuracy | Class 2.5 |
| Pressure Gauge Resolution | 0.01 MPa |
| Test Environment | Ambient temperature: room temperature to 40℃; relative humidity: ≤70% |
| Input Pressure | 0.25-0.3 MPa |
| Working Pressure | Nitrogen 0.15-0.20 MPa; oxygen 0.15-0.20 MPa |
| Applicable Specimen Clamp Use | Soft and hard plastics, various building materials, textiles, fire doors, etc. |
| Ignition System | Propane/butane ignition system |
| Ignition Nozzle | Metal tube with a nozzle at the tail end; inner diameter Φ2±1 mm; freely bendable and can enter the combustion cylinder to ignite the specimen |
| Flame Length | 16±4 mm |
| Flame Size Adjustment | 5 mm-60 mm, freely adjustable |
| Gas Requirement | Industrial nitrogen and oxygen, purity >99%; gas source and connectors prepared by user |
| Power Requirement | AC220(+10%)V, 50Hz |
| Maximum Power | 150 W |
| Self-supporting Material Specimen Clamp | Can be fixed at the axial center of the combustion cylinder and vertically clamp the specimen |
| Non-self-supporting Material Specimen Clamp | Can fix two vertical edges of the specimen on the frame; optional, used for textiles and other soft non-self-supporting materials |
Customer Feedback On Oxygen Index Tester
The Oxygen Index Tester is used to test oxygen index and combustion behavior of soft plastics, hard plastics, building materials, textiles, fire doors, and other materials.
The Oxygen Index Tester is designed according to GB/T 2406.2-2009 for oxygen index testing.
The Oxygen Index Tester allows users to set oxygen concentration on the touch screen, and the program automatically adjusts the gas ratio until the concentration reaches balance.
The oxygen concentration display range of the Oxygen Index Tester is 0–100%.
The flow adjustment range of the Oxygen Index Tester is 0–20 L/min, equivalent to 0–1200 L/h.
The Oxygen Index Tester requires industrial-grade oxygen and nitrogen with purity not less than 98%. The gas source and connectors are prepared by the user.
The Oxygen Index Tester requires AC 220 V ±10%, 50 Hz power supply, with maximum power of 150 W.











