Product Description
221L 4 Gas Calibration Gas – 18.0% O₂ Extended Hazard Testing Cylinder
This 221L disposable 4 gas calibration gas is designed for extended-duration oxygen deficiency simulation, featuring 18.0% Oxygen (O₂) with Carbon Monoxide (CO) and Methane (CH₄) balanced in nitrogen.
With significantly more capacity than smaller disposable cylinders, it allows safety teams to perform multiple calibration cycles and repeated hazard-level testing without frequent cylinder replacement.
Gas Composition
- Carbon Monoxide (CO): 50 PPM
- Methane (CH₄): 2.5% (50% LEL)
- Oxygen (O₂): 18.0% (Critical Oxygen Deficiency Simulation)
- Balance Gas: Nitrogen (N₂)
Cylinder Specifications
- Cylinder Size: 221L
- Pressure: 250 PSI
- Valve: CGA-165
- Material: Steel
- Type: Disposable
- Reactivity: Non-Reactive
Applications
- Multi-day confined space testing
- Oxygen deficiency alarm validation
- High-frequency bump testing programs
- Industrial safety compliance
- Field operations requiring extended gas supply
Why This 221L 18% O₂ Cylinder is a Workhorse
- Provides longer runtime for repeated hazard-level testing
- Reduces cylinder swaps during active job sites
- Maintains portability without switching to refillable systems
- Compatible with CGA-165 regulator setups
- Ideal for crews running continuous safety checks
18.0% O₂ Calibration Role
- Validates detector response at danger-level oxygen thresholds
- Ensures alarm accuracy in high-risk environments
- Complements standard and moderate O₂ calibration gases
Need Smaller Portable or Bulk Facility Cylinders?
We offer disposable and refillable calibration gas cylinders across multiple sizes and oxygen levels. Contact us for custom solutions.
Other Details
Warranty 48 monthsProduct Videos
Custom Field
Size 221L
Gas Composition CO / CH4 / O2
Cylinder Material Steel
Cylinder Pressure 250 PSI
Gas Reactivity Non-Reactive
Carbon Monoxide (CO) Concentration 50 PPM
Methane (CH₄) Concentration 2.5% (50% LEL)
Oxygen (O2) Concentration 18.0%
