Product Description
CO / LPG (50% LEL) / O₂ (20.9%) Calibration Gas – 221L High-Capacity Cylinder for Extended Calibration
This Carbon Monoxide (CO), LPG (Propane), and Oxygen (O₂) calibration gas mixture is designed for extended multi-gas detector calibration under ambient atmospheric conditions, ensuring accurate performance across toxic, combustible, and oxygen sensors.
With 1.05% LPG (50% LEL), this mixture delivers precise calibration of combustible gas (LEL) sensors, while the 20.9% oxygen concentration replicates normal air conditions, supporting real-world detector accuracy and compliance.
The 221 liter disposable cylinder provides high-capacity calibration support, reducing cylinder replacement frequency and making it ideal for facilities managing multiple detectors across teams or job sites.
Gas Composition
- Carbon Monoxide (CO): 100 PPM
- LPG (Propane): 1.05% (50% LEL)
- Oxygen (O₂): 20.9%
- Balance Gas: Nitrogen
Cylinder Specifications
- Cylinder Size: 221 Liters
- Pressure: 250 PSI
- Valve Type: CGA-165
- Cylinder Material: Steel
- Cylinder Type: Disposable
- Gas Type: Non-Reactive
- Approx. Volume: 7.5 Cubic Feet
Applications & Use Cases
- Multi-gas detector calibration (CO / LEL / O₂ sensors)
- High-volume industrial safety programs
- Calibration under ambient oxygen conditions (20.9%)
- Confined space and workplace monitoring
- Extended calibration and maintenance cycles
Why This Gas Mix
- High-capacity efficiency – fewer cylinder changes for large programs
- Real-world calibration conditions – 20.9% oxygen mirrors atmospheric air
- LEL calibration standard – 50% LEL propane for combustible gas sensors
- Multi-gas efficiency – calibrate CO, LEL, and O₂ sensors with one cylinder
If you have a need for a calibration gas that is not shown in our e-commerce store, simply call for a quick quote.
