Product Description
680L CO₂ (25%), CH₄ (50% LEL), and O₂ Calibration Gas – Bulk High-Range IR & LEL Testing
This 680L custom calibration gas cylinder is engineered for high-volume calibration programs requiring elevated CO₂ concentration accuracy and reliable combustible gas testing across multiple devices.
The mixture includes 25.0% Carbon Dioxide (CO₂) for high-range IR (NDIR) sensor calibration, 2.5% Methane (50% LEL) for standard combustible gas verification, and 20.9% Oxygen (O₂) to simulate normal atmospheric conditions.
This blend is ideal for facilities managing large fleets of gas detectors that require consistent calibration across CO₂, methane, and oxygen sensors.
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: 680L
- Pressure: 1800 PSI
- Cylinder Material: Aluminum
- Valve Type: CGA-Specific
- Reactivity: Non-Reactive
Applications
- High-volume IR (NDIR) CO₂ calibration
- Standard 50% LEL methane testing
- Multi-device calibration programs
- Industrial hygiene monitoring
- Large-scale safety compliance
Why This CO₂ / Methane Calibration Gas
- Bulk capacity for continuous calibration workflows
- Supports high-range CO₂ calibration (25%)
- Industry-standard 50% LEL methane testing
- Simulates normal atmospheric oxygen (20.9%)
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 680L
Gas Composition CO2, CH4, O2
Cylinder Material Aluminum
Gas Reactivity Non-Reactive
Cylinder Pressure 1800 PSI
Carbon Dioxide (CO2) Concentration 25.0%
Methane (CH4) Concentration 2.5% (50% LEL)
Oxygen (O2) Concentration 20.9%