Product Description
20.9% Oxygen Calibration Gas – CO 100 PPM / CH₄ 1.0% (20% LEL) – 120L Cylinder
This 20.9% oxygen calibration gas is designed for routine calibration under normal atmospheric conditions, supporting accurate and repeatable gas detector performance across daily operations.
The mixture includes Carbon Monoxide (CO) 100 PPM for toxic gas calibration and Methane (CH₄) 1.0% (20% LEL) for low-level combustible gas response verification, ensuring detectors respond correctly within safe detection thresholds. Oxygen at 20.9% replicates ambient air, making this gas ideal for compliance-driven calibration and maintenance programs.
Supplied in a 120L aluminum cylinder at 1050 PSI with a C-10 valve, this configuration is built for structured calibration workflows, providing extended runtime without the size and handling requirements of larger cylinders.
Gas Concentrations
| Gas | Concentration |
|---|---|
| Carbon Monoxide (CO) | 100 PPM |
| Methane (CH₄) | 1.0% (20% LEL) |
| Oxygen (O₂) | 20.9% |
| Balance | Nitrogen (N₂) |
Cylinder Specifications
| Specification | Value |
|---|---|
| Cylinder Size | 120 Liters |
| Pressure | 1050 PSI |
| Volume | 4.2 Cubic Feet |
| Material | Aluminum |
| Valve | C-10 |
| Reactivity | Non-Reactive |
| Disposal | Disposable |
Applications & Compatibility
- Routine gas detector calibration
- Scheduled bump testing programs
- OSHA and compliance-driven safety programs
- Industrial hygiene monitoring
- Multi-detector maintenance workflows
Compatible with portable and fixed gas detectors measuring CO, CH₄ (LEL), and O₂.
Why This Configuration Matters
- 20.9% O₂ replicates normal atmospheric conditions
- CO 100 PPM supports toxic gas calibration
- CH₄ at 20% LEL validates early combustible gas detection
- 120L capacity supports structured, repeat-use programs
- Ideal for compliance-driven, ongoing calibration workflows
