Product Description
221L Extended-Use CO / Pentane / Oxygen Calibration Gas (50% LEL, 21% O₂) for Field & Facility Efficiency
Designed for longer calibration cycles without complex setup, this 221L custom calibration gas cylinder contains a balanced mixture of Carbon Monoxide (CO) 200 PPM, Pentane (C₅H₁₂) 0.75% (50% LEL), and Oxygen (O₂) 21.0%, with nitrogen as the balance gas. Pressurized to 250 PSI, this non-reactive disposable steel cylinder is ideal for extended field use, multi-detector calibration, and simplified deployment without refill logistics.
Gas Mixture & Cylinder Specifications
- Carbon Monoxide (CO): 200 PPM
- Pentane (C₅H₁₂): 0.75% (50% LEL)
- Oxygen (O₂): 21.0%
- Balance Gas: Nitrogen
- Cylinder Size: 221L (7.5 cu ft)
- Pressure: 250 PSI
- Material: Steel
- Valve: CGA-165
- Reactivity: Non-Reactive
Applications & Use Cases
- Extended calibration across multiple devices
- Field and facility calibration programs without refill handling
- Calibration in ambient-air environments (21% oxygen)
- High-response LEL calibration at 50% LEL concentration
- Industrial safety compliance and routine maintenance
Why Buyers Choose This 221L Custom Mix
- Large disposable format reduces cylinder change frequency
- No refill or return logistics — simple, ready-to-use deployment
- 50% LEL pentane concentration ensures strong calibration signal
- 21.0% oxygen level replicates real-world air conditions
- Ideal for teams managing multiple detectors in the field
Custom Calibration Gas Solutions
This is a custom calibration gas blend engineered for specific applications. We provide tailored mixtures, concentrations, and cylinder sizes. Contact us for a fast quote.
Other Details
Warranty 48 monthsProduct Videos
Custom Field
Size 221LS
Gas Composition CO / C5H12 / O2
Cylinder Material Steel
Cylinder Pressure 250 PSI
Gas Reactivity Non-Reactive
Carbon Monoxide (CO) Concentration 200 PPM
Pentane (C5H12) Concentration 0.75% (50% LEL)
Oxygen (O2) Concentration 21.0%
