Product Description
66L CO, CH₄ (50% LEL), and O₂ Calibration Gas – Standard Compliance Calibration
This 66L calibration gas cylinder is designed for routine calibration and bump testing of multi-gas detectors, using a widely accepted 50% LEL methane concentration for standard compliance verification.
The mixture includes 2.5% Methane (50% LEL) for combustible gas calibration and 20.9% Oxygen (O₂) to simulate normal atmospheric conditions. With 25 PPM Carbon Monoxide (CO), this blend supports accurate detector response across toxic, combustible, and oxygen sensors.
Gas Concentrations
- Carbon Monoxide (CO): 25 PPM
- 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
- Routine bump testing of gas detectors
- Standard calibration programs
- Confined space safety compliance
- Industrial hygiene monitoring
- Maintenance of portable and fixed detectors
Why This 50% LEL Calibration Gas
- Industry-standard 50% LEL concentration
- Ideal for daily compliance and safety checks
- Simulates real atmospheric oxygen conditions
- Balanced for consistent detector response validation
Custom Calibration Gas Available
We provide custom gas mixtures and concentrations with fast turnaround to match your detector requirements.
Other Details
Warranty 48 monthsProduct Videos
Custom Field
Size 66L
Gas Composition CO / CH₄ / O₂
Cylinder Material Aluminum
Gas Reactivity Non-Reactive
Carbon Monoxide (CO) Concentration 25 PPM
Methane (CH₄) Concentration 2.5% (50% LEL)
Oxygen (O₂) Concentration 20.9%
