Product Description
221L Disposable CO / Propane / Oxygen Calibration Gas for Extended Field Use
Designed for longer service intervals without the need for returnable cylinders, this 221L disposable calibration gas cylinder delivers a stable blend of Carbon Monoxide (CO) 50 PPM, Propane (C₃H₈) 1.1% (50% LEL), and Oxygen (O₂) 18.0%, balanced with nitrogen. Charged to 250 PSI, this non-reactive steel cylinder provides consistent output for extended calibration and bump testing applications.
Gas Mixture & Cylinder Specifications
- Carbon Monoxide (CO): 50 PPM
- Propane (C₃H₈): 1.1% (50% LEL)
- Oxygen (O₂): 18.0%
- Balance Gas: Nitrogen
- Cylinder Size: 221L (7.5 cu ft)
- Pressure: 250 PSI
- Material: Steel
- Valve: CGA-165
- Type: Disposable
- Reactivity: Non-Reactive
Applications & Use Cases
- Calibration of portable and fixed multi-gas detectors
- LEL sensor verification using propane calibration gas
- Oxygen deficiency and CO sensor calibration
- Extended-duration bump testing programs
- Job sites requiring longer use without cylinder replacement
Why Buyers Choose This 221L Cylinder
- Higher-capacity disposable option reduces replacement frequency
- No return logistics — use and replace as needed
- Consistent multi-gas calibration across CO, LEL, and O₂ sensors
- Ideal middle ground between small disposables and large cylinders
- Preferred for contractors, crews, and multi-day field projects
Custom Calibration Gas Options Available
Looking for a different concentration, gas combination, or cylinder size? We offer custom calibration gas blends tailored to your detectors and compliance requirements. Contact us for a quick quote.
Other Details
Warranty 48 monthsProduct Videos
Custom Field
Size 221LS
Gas Composition CO / C3H8 / O2
Cylinder Material Steel
Cylinder Pressure 250 PSI
Gas Reactivity Non-Reactive
Carbon Monoxide (CO) Concentration 50 PPM
Propane (C3H8) Concentration 1.1% (50% LEL)
Oxygen (O2) Concentration 18.0%
