Product Description
4 Gas H2S CO CH4 O2 Calibration Gas – 120L Cylinder
Built for crews performing continuous monitoring or high-volume bump testing, this 4-gas calibration mixture verifies toxic, oxygen-deficiency, and combustible channels in a single application. The larger 120L cylinder minimizes cylinder changeouts and supports routine safety verification programs.
Gas Concentrations
| Component | Concentration |
|---|---|
| Hydrogen Sulfide (H₂S) | 75 PPM |
| Carbon Monoxide (CO) | 100 PPM |
| Methane (CH₄) | 2.5% (50% LEL) |
| Oxygen (O₂) | 16.0% |
| Balance | Nitrogen |
Cylinder Specifications
| Property | Value |
|---|---|
| Cylinder Size | 120L (4.2 ft³) |
| Cylinder Specification | C-10 |
| Cylinder Material | Aluminum |
| Gas Reactivity | Reactive |
Why This Cylinder Exists
Technicians don’t calibrate one sensor — they verify the environment is survivable.
This mixture confirms:
-
Toxic exposure detection (H₂S, CO)
-
Oxygen deficiency alarm response (O₂)
-
Explosion hazard detection (Methane LEL)
All in one controlled exposure.
Typical Use Cases
-
Confined space entry programs
-
Turnaround and shutdown safety checks
-
Wastewater and sewer monitoring routes
-
Daily fleet bump-testing
-
Industrial hygiene verification rounds
Custom Calibration Available
Need different alarm setpoints or detector requirements?
We provide made-to-order gas blends matched to your monitoring program.
