Product Description
221L CO / Pentane / Oxygen Calibration Gas (50% LEL, 20.9% O₂) for Extended Precision Calibration
Built for long-duration calibration with exact atmospheric accuracy, this 221L calibration gas cylinder contains a precise blend of Carbon Monoxide (CO) 100 PPM, Pentane (C₅H₁₂) 0.75% (50% LEL), and Oxygen (O₂) 20.9%, balanced with nitrogen. Pressurized to 250 PSI, this non-reactive disposable steel cylinder is ideal for extended field use, multi-instrument calibration, and compliance-driven applications without refill logistics.
Gas Mixture & Cylinder Specifications
- Carbon Monoxide (CO): 100 PPM
- Pentane (C₅H₁₂): 0.75% (50% LEL)
- Oxygen (O₂): 20.9%
- 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 detectors
- Precision calibration using true atmospheric oxygen (20.9%)
- Compliance and regulated calibration programs
- Sensor validation at 100 ppm CO concentration
- High-response LEL calibration at 50% LEL concentration
Why Buyers Choose This 221L Precision Mix
- Large disposable format reduces cylinder replacement frequency
- No refill or return logistics simplifies operations
- 20.9% oxygen ensures exact atmospheric calibration
- 100 ppm CO concentration supports precise compliance calibration
- Ideal for teams needing extended runtime without infrastructure
Custom Calibration Gas Solutions
We produce calibration gases for a wide range of gas detectors. If you require a custom blend not listed, contact us for a fast and accurate quote tailored to your application.
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 100 PPM
Pentane (C5H12) Concentration 0.75% (50% LEL)
Oxygen (O2) Concentration 20.9%
