Product Description
120L CO (10 PPM), CH₄ (50% LEL), and O₂ Calibration Gas – Facility Standard for Low-Level CO Detection
This 120L custom calibration gas cylinder is designed for routine facility calibration programs requiring accurate low-level carbon monoxide detection and consistent combustible gas testing.
The mixture includes 10 PPM Carbon Monoxide (CO) for sensitive toxic gas calibration, 2.5% Methane (50% LEL) for standard combustible gas response testing, and 20.9% Oxygen (O₂) to simulate normal atmospheric conditions.
This combination is ideal for multi-gas detectors that require precise low-range CO calibration while maintaining industry-standard LEL verification.
Gas Concentrations
- Carbon Monoxide (CO): 10 PPM
- Methane (CH₄): 2.5% (50% LEL)
- Oxygen (O₂): 20.9%
- Balance Gas: Nitrogen (N₂)
Cylinder Specifications
- Cylinder Size: 120L
- Pressure: 1050 PSI
- Cylinder Material: Aluminum
- Valve Type: C-10
- Reactivity: Non-Reactive
Applications
- Low-level CO detector calibration
- Routine facility calibration programs
- Standard 50% LEL bump testing
- Industrial hygiene monitoring
- Confined space safety compliance
Why This 120L Calibration Gas
- Facility-standard size for daily calibration workflows
- Supports low-level CO detection (10 PPM)
- Industry-standard 50% LEL methane testing
- Ideal for repeat-use calibration programs
Request a Custom Calibration Gas Quote
Need a different CO level, gas mix, or cylinder configuration?
Contact us for a fast custom calibration gas quote tailored to your application.
Other Details
Warranty 48 monthsProduct Videos
Custom Field
Size 120L
Gas Composition CO / CH₄ / O₂
Cylinder Material Aluminum
Cylinder Pressure 1050 PSI
Gas Reactivity Non-Reactive
Carbon Monoxide (CO) Concentration 10 PPM
Methane (CH₄) Concentration 2.5% (50% LEL)
Oxygen (O₂) Concentration 20.9%
