Product Description
4 Gas H2S CO CH4 O2 Calibration Gas – 120L Cylinder
This four-gas calibration mixture is designed for continuous bump-testing programs and multi-instrument verification. The reduced oxygen concentration triggers alarm response while toxic and combustible channels are validated in the same exposure.
The large 120L cylinder minimizes replacement frequency during daily safety checks.
Gas Concentrations
| Component | Concentration |
|---|---|
| Hydrogen Sulfide (H₂S) | 50 PPM |
| Carbon Monoxide (CO) | 50 PPM |
| Methane (CH₄) | 2.5% (50% LEL) |
| Oxygen (O₂) | 12.0% |
| Balance | Nitrogen |
Cylinder Specifications
| Property | Value |
|---|---|
| Cylinder Size | 120L (4.2 ft³) |
| Cylinder Specification | C-10 |
| Cylinder Material | Aluminum |
| Gas Reactivity | Reactive |
What This Cylinder Verifies
A single exposure confirms:
-
Toxic gas detection response (H₂S & CO)
-
Oxygen-deficiency alarm activation
-
Combustible gas response (methane LEL)
Used when confirming alarm thresholds rather than just sensor presence.
Typical Applications
-
Confined space entry programs
-
High-volume bump testing routes
-
Safety compliance inspections
-
Wastewater monitoring systems
-
Preventative maintenance calibration
Custom Mixtures Available
Alternative alarm setpoints and concentrations available upon request.
