Product Description
221L CO, CH₄ (20% LEL), and O₂ Calibration Gas – High-Use Facility Cylinder
This 221L calibration gas cylinder is designed for high-use calibration environments, providing extended gas supply for teams managing multiple detectors and routine testing schedules.
The mixture includes 1.0% Methane (20% LEL) for controlled combustible gas calibration and 20.9% Oxygen (O₂) to simulate real atmospheric conditions. With 50 PPM Carbon Monoxide (CO), this blend supports full multi-gas detector calibration across toxic, combustible, and oxygen sensors.
Gas Concentrations
- Carbon Monoxide (CO): 50 PPM
- Methane (CH₄): 1.0% (20% LEL)
- Oxygen (O₂): 20.9%
- Balance Gas: Nitrogen (N₂)
Cylinder Specifications
- Cylinder Size: 221L
- Pressure: 250 PSI
- Cylinder Material: Steel
- Valve Type: CGA-165
- Reactivity: Non-Reactive
Applications
- High-frequency detector calibration programs
- Facility-wide bump testing
- Industrial hygiene monitoring
- Confined space compliance
- Maintenance of large gas detection fleets
Why This 221L Cylinder
- Extended runtime for high-use environments
- Durable steel construction for facility settings
- Reduces frequency of cylinder replacement
- Ideal for teams managing multiple detectors daily
Custom Calibration Gas Available
We supply custom gas mixtures and concentrations with fast turnaround to meet your specific requirements.
Other Details
Warranty 48 monthsProduct Videos
Custom Field
Size 221L
Gas Composition CO / CH₄ / O₂
Cylinder Material Steel
Gas Reactivity Non-Reactive
Cylinder Pressure 250 PSI
Carbon Monoxide (CO) Concentration 50 PPM
Methane (CH₄) Concentration 1.0% (20% LEL)
Oxygen (O₂) Concentration 20.9%
