Product Description
221L CO / Pentane / Oxygen Calibration Gas (25% LEL, 19.0% O₂) for Low-Pressure Confined Space Calibration Systems
This 221L calibration gas cylinder is designed for controlled, low-pressure calibration delivery in confined space environments, containing a precise mixture of Carbon Monoxide (CO) 100 PPM, Pentane (C₅H₁₂) 0.35% (25% LEL), and Oxygen (O₂) 19.0%, balanced with nitrogen. Pressurized to 250 PSI, this non-reactive disposable steel cylinder is ideal for applications requiring stable flow rates, CGA-165 regulator compatibility, and extended calibration runtime without high-pressure handling.
Gas Mixture & Cylinder Specifications
- Carbon Monoxide (CO): 100 PPM
- Pentane (C₅H₁₂): 0.35% (25% LEL)
- Oxygen (O₂): 19.0%
- Balance Gas: Nitrogen
- Cylinder Size: 221L (7.5 cu ft)
- Pressure: 250 PSI
- Material: Steel
- Valve: CGA-165
- Reactivity: Non-Reactive
Applications & Use Cases
- Confined space calibration with low-pressure systems
- Oxygen-deficiency detector verification (19.0% O₂ environments)
- Facilities using CGA-165 regulator configurations
- Calibration environments requiring stable, controlled gas flow
- High-frequency calibration programs without high-pressure cylinders
Why Buyers Choose This 221L Cylinder
- Low-pressure (250 PSI) for safer, controlled delivery
- Compatible with CGA-165 regulators
- High capacity without high pressure handling
- Ideal for bench calibration setups and facility use
- Simulates real confined space conditions
Custom Calibration Gas Solutions
We produce calibration gases for a wide variety of gas detectors. If you require a custom blend not listed, contact us for a quick 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 0.35% (25% LEL)
Oxygen (O2) Concentration 19.0%
