Product Description
High-Capacity 4-Gas Calibration Cylinder for Detector Maintenance
This 4-gas calibration mixture contains Hydrogen Sulfide (H₂S) 10 ppm, Carbon Monoxide (CO) 35 ppm, Methane (CH₄) 0.5% (10% LEL), and Oxygen (O₂) 20.9% balanced with Nitrogen.
The mixture is engineered for calibration and functional testing of portable multi-gas detectors used to monitor toxic gas exposure, combustible gas hazards, and oxygen concentration in hazardous work environments.
Supplied in a 120L aluminum cylinder pressurized to 1050 PSI with a C-10 valve, this calibration gas provides extended service life for facilities that perform frequent detector calibration.
Gas Composition – Hydrogen Sulfide (H₂S), Carbon Monoxide (CO), Methane (CH₄) and Oxygen (O₂)
| Gas | Concentration |
|---|---|
| Hydrogen Sulfide (H₂S) | 10 ppm |
| Carbon Monoxide (CO) | 35 ppm |
| Methane (CH₄) | 0.5% (10% LEL) |
| Oxygen (O₂) | 20.9% |
| Balance Gas | Nitrogen |
The 20.9% oxygen concentration simulates atmospheric oxygen, allowing technicians to verify oxygen sensor accuracy while testing combustible and toxic gas detection.
Cylinder Specifications
| Specification | Value |
|---|---|
| Cylinder Size | 120L |
| Pressure | 1050 PSI |
| Cylinder Material | Aluminum |
| Valve Type | C-10 |
| Cylinder Type | Refillable |
| Gas Reactivity | Reactive |
| Volume Equivalent | 4.2 Cubic Feet |
The 120L cylinder size is commonly used by safety teams performing frequent calibration cycles across multiple gas detectors, reducing the need for frequent cylinder replacement.
Typical Applications
• Portable gas detector calibration
• Multi-gas monitor bump testing
• Confined space entry safety programs
• Industrial hygiene monitoring
• Sensor response verification
Regular calibration ensures detectors respond properly to hydrogen sulfide exposure, carbon monoxide hazards, combustible methane levels and oxygen concentration changes.
Custom Calibration Gas Mixtures Available
If your gas detection equipment requires different concentrations or specialty mixtures, custom calibration gas blends are available. We produce calibration gases for a wide range of portable gas detectors and industrial monitoring instruments.
Contact our team for assistance with custom calibration gas mixtures.
