Product Description
20.9% Oxygen Calibration Gas – CO 100 PPM / CH₄ 1.0% (20% LEL) – 60L Cylinder
This 20.9% oxygen calibration gas is designed for routine calibration under normal atmospheric conditions, ensuring reliable gas detector performance in everyday operating environments.
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, allowing accurate validation of early detection thresholds. Oxygen at 20.9% replicates ambient air conditions, making this gas ideal for daily calibration, bump testing, and compliance checks.
Supplied in a 60L aluminum cylinder at 1000 PSI with a C-10 valve, this configuration is optimized for repeatable operational use, balancing manageable size with sufficient runtime for ongoing calibration programs.
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 | 60 Liters |
| Pressure | 1000 PSI |
| Volume | 2.1 Cubic Feet |
| Material | Aluminum |
| Valve | C-10 |
| Reactivity | Non-Reactive |
| Disposal | Disposable |
Applications & Compatibility
- Routine gas detector calibration
- Daily bump testing and verification
- 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 validates early combustible gas detection
- 60L cylinder supports consistent, repeat-use workflows
- Ideal for daily calibration and compliance programs
