Product Description
20.9% Oxygen Calibration Gas – CO 100 PPM / CH₄ 1.0% (20% LEL) – 66L Cylinder
This 20.9% oxygen calibration gas is designed for standard atmospheric calibration, providing accurate validation of gas detectors under normal operating conditions.
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 and expected exposure ranges. Oxygen at 20.9% represents typical ambient air conditions, making this gas ideal for routine calibration and compliance testing.
Supplied in a 66 liter aluminum cylinder at 1150 PSI with a C-10 valve, this configuration supports daily calibration, bump testing, and general maintenance programs across a wide range of industrial applications.
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 | 66 Liters |
| Pressure | 1150 PSI |
| Volume | 2.3 Cubic Feet |
| Material | Aluminum |
| Valve | C-10 |
| Reactivity | Non-Reactive |
| Disposal | Disposable |
Applications & Compatibility
- Routine gas detector calibration
- Daily bump testing and maintenance
- OSHA and safety compliance programs
- Industrial hygiene monitoring
- General workplace safety validation
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 verifies early combustible gas detection response
- Ideal for routine calibration and compliance workflows
- Supports safe, repeatable detector validation
