Product Description
66L CO₂ (25%), CH₄ (50% LEL), and O₂ Calibration Gas – High-Range IR + Standard LEL Testing
This 66L custom calibration gas cylinder is designed for multi-gas detector calibration requiring high-range CO₂ accuracy and standard combustible gas verification.
The mixture includes 25.0% Carbon Dioxide (CO₂) for higher-range IR (NDIR) sensor calibration, 2.5% Methane (50% LEL) for standard combustible gas response testing, and 20.9% Oxygen (O₂) to simulate normal atmospheric conditions.
This blend is ideal for applications requiring accurate CO₂ calibration at elevated concentrations while maintaining reliable LEL and oxygen sensor performance.
Gas Concentrations
- Carbon Dioxide (CO₂): 25.0%
- Methane (CH₄): 2.5% (50% LEL)
- Oxygen (O₂): 20.9%
- Balance Gas: Nitrogen (N₂)
Cylinder Specifications
- Cylinder Size: 66L
- Pressure: 1150 PSI
- Cylinder Material: Aluminum
- Valve Type: C-10
- Reactivity: Non-Reactive
Applications
- High-range IR (NDIR) CO₂ calibration
- Standard 50% LEL methane testing
- Multi-gas detector verification
- Industrial hygiene monitoring
- Confined space safety compliance
Why This CO₂ / Methane Calibration Gas
- Higher CO₂ concentration for advanced IR calibration
- Industry-standard 50% LEL methane testing
- Simulates normal atmospheric oxygen (20.9%)
- Ideal for multi-sensor calibration setups
Request a Custom Calibration Gas Quote
Need a different CO₂ %, gas mix, or cylinder size?
Contact us for a fast custom calibration gas quote tailored to your application.
Other Details
Warranty 48 monthsProduct Videos
Custom Field
Size 66L
Gas Composition CO2, CH4, O2
Cylinder Material Aluminum
Gas Reactivity Non-Reactive
Cylinder Pressure 1150 PSI
Carbon Dioxide (CO2) Concentration 25.0%
Methane (CH4) Concentration 2.5% (50% LEL)
Oxygen (O2) Concentration 20.9%
