Product Description
CO 50 PPM / CH₄ 50% LEL / O₂ 20.9% Calibration Gas – 66L
This multi-gas calibration gas is designed for standard methane-based LEL calibration, providing accurate and reliable detector validation in typical atmospheric conditions.
The mixture includes Carbon Monoxide (CO) 50 PPM for toxic gas calibration, Methane (CH₄) 2.5% (50% LEL) for combustible gas response, and Oxygen (O₂) 20.9% to represent normal ambient air conditions.
Supplied in a 66L aluminum cylinder at 1150 PSI with a C-10 valve, this configuration supports routine calibration, bump testing, and maintenance programs across a wide range of industrial applications.
Gas Concentrations
| Gas | Concentration |
|---|---|
| Carbon Monoxide (CO) | 50 PPM |
| Methane (CH₄) | 2.5% (50% LEL) |
| Oxygen (O₂) | 20.9% |
| Balance | Nitrogen (N₂) |
Cylinder Specifications
| Specification | Value |
|---|---|
| Cylinder Size | 66L |
| Cylinder Pressure | 1150 PSI |
| Cylinder Volume | 2.3 Cubic Feet |
| Cylinder Material | Aluminum |
| Valve Type | C-10 |
| Gas Reactivity | Non-Reactive |
Applications & Compatibility
- Standard LEL calibration (methane-based)
- Routine gas detector maintenance
- Bump testing and compliance checks
- Industrial safety programs
- Confined space monitoring
Compatible with multi-gas detectors measuring CO, CH₄ (LEL), and O₂.
Why This Gas
- 50% LEL methane → industry-standard combustible calibration point
- 20.9% oxygen → represents normal atmospheric conditions
- CO 50 PPM → common toxic gas calibration level
- 66L cylinder → ideal for routine operational use
Other Details
Warranty 48 monthsProduct Videos
Custom Field
Size 66L
Gas Composition CO / CH4 / O2
Cylinder Material Aluminum
Cylinder Pressure 1150 PSI
Gas Reactivity Non-Reactive
Carbon Monoxide (CO) Concentration 50 PPM
Methane (CH₄) Concentration 2.5% (50% LEL)
Oxygen (O2) Concentration 20.9%
