Product Description
Portable 4-Gas Calibration Gas for Detector Bump Testing
This 4-gas calibration mixture contains Hydrogen Sulfide (H₂S) 25 ppm, Carbon Monoxide (CO) 100 ppm, Methane (CH₄) 1.25% (25% LEL), and Oxygen (O₂) 20.9% balanced with Nitrogen.
The mixture is used to verify and calibrate portable multi-gas detectors that monitor toxic gases, combustible gases and oxygen concentration in hazardous work environments.
Supplied in a 44L aluminum cylinder pressurized to 750 PSI with a C-10 valve, this calibration gas cylinder is commonly used for routine detector bump testing and scheduled instrument maintenance.
Gas Composition – Hydrogen Sulfide (H₂S), Carbon Monoxide (CO), Methane (CH₄) and Oxygen (O₂)
| Gas | Concentration |
|---|---|
| Hydrogen Sulfide (H₂S) | 25 ppm |
| Carbon Monoxide (CO) | 100 ppm |
| Methane (CH₄) | 1.25% (25% LEL) |
| Oxygen (O₂) | 20.9% |
| Balance Gas | Nitrogen |
The 20.9% oxygen concentration reflects atmospheric oxygen levels, allowing technicians to confirm oxygen sensor accuracy alongside combustible gas and toxic gas detection sensors.
Cylinder Specifications
| Specification | Value |
|---|---|
| Cylinder Size | 44L |
| Pressure | 750 PSI |
| Cylinder Material | Aluminum |
| Valve Type | C-10 |
| Cylinder Type | Disposable |
| Gas Reactivity | Reactive |
| Volume Equivalent | 1.5 Cubic Feet |
The 44L cylinder size offers a portable calibration solution that is easy to transport while still supporting multiple detector bump tests.
Typical Applications
• Portable gas detector calibration
• Multi-gas monitor bump testing
• Confined space safety monitoring
• Industrial hygiene programs
• Gas detector sensor verification
Routine calibration ensures detectors respond correctly to hydrogen sulfide exposure, carbon monoxide hazards, combustible methane levels and oxygen concentration changes.
Custom Calibration Gas Mixtures
If your gas detection equipment requires different concentrations or specialty mixtures, custom calibration gas blends are available. We produce calibration gases for a wide variety of portable gas detectors and industrial monitoring instruments.
Contact our team for assistance with custom calibration gas mixtures.
