Product Description
CO 250 PPM / CH₄ 2.5% (50% LEL) / O₂ 17.0% Calibration Gas – 221L Cylinder
This calibration gas blend contains Carbon Monoxide (CO) 250 PPM, Methane (CH₄) 2.5% (50% LEL), and Oxygen (O₂) 17.0%, balanced in nitrogen to simulate oxygen-deficient environments while maintaining accurate multi-gas detector calibration. Supplied in a 221L steel cylinder at 250 PSI with a CGA-165 valve, this disposable configuration is designed for extended calibration cycles and simplified field handling.
Cylinder & Mixture Details
- Cylinder Size: 221L (7.5 Cubic Feet)
- Cylinder Pressure: 250 PSI
- Cylinder Material: Steel
- Valve Type: CGA-165
- Gas Reactivity: Non-Reactive
- Balance Gas: Nitrogen (N₂)
Applications & Use Cases
- Calibration in oxygen-deficient environments
- Confined space compliance and safety validation
- Industrial hygiene monitoring programs
- Extended-use calibration across multiple detectors or teams
Why This Gas Blend
- 250 PPM CO for mid-range toxic gas calibration
- Methane at 50% LEL for combustible hazard simulation
- 17.0% oxygen enables realistic oxygen-deficiency testing
- Larger disposable cylinder reduces downtime and changeouts
Custom Gas Mix Available
We manufacture calibration gas mixtures tailored to your application. Contact us for alternate oxygen levels, concentrations, or cylinder configurations.
Other Details
Warranty 48 monthsProduct Videos
Custom Field
Size 221LS
Gas Composition CO / CH4 / O2
Cylinder Material Steel
Cylinder Pressure 250 PSI
Gas Reactivity Non-Reactive
Carbon Monoxide (CO) Concentration 250 PPM
Methane (CH₄) Concentration 2.5% (50% LEL)
Oxygen (O2) Concentration 17.0%
