Product Description
Extended-Capacity 4-Gas Calibration Mixture for Detector Maintenance
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 for calibration and bump testing of portable multi-gas detectors used to monitor toxic gases, combustible gas hazards and oxygen concentration in industrial safety environments.
Delivered in a 116L aluminum cylinder pressurized to 1000 PSI with a C-10 valve, this calibration gas cylinder provides increased gas volume for organizations maintaining multiple gas detection instruments.
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 corresponds to atmospheric oxygen, enabling technicians to verify oxygen sensor response alongside combustible gas and toxic gas sensors.
Cylinder Specifications
| Specification | Value |
|---|---|
| Cylinder Size | 116L |
| Pressure | 1000 PSI |
| Cylinder Material | Aluminum |
| Valve Type | C-10 |
| Cylinder Type | Disposable |
| Gas Reactivity | Reactive |
| Volume Equivalent | 4.0 Cubic Feet |
The 116L cylinder size offers greater calibration capacity than smaller field cylinders while remaining manageable for routine maintenance and detector verification programs.
Typical Applications
• Portable gas detector calibration
• Multi-gas monitor bump testing
• Confined space monitoring programs
• Industrial hygiene safety inspections
• Gas detector sensor verification
Routine calibration ensures detectors respond correctly to hydrogen sulfide exposure, carbon monoxide hazards, combustible methane concentrations and oxygen monitoring.
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 large variety of portable gas detectors and industrial monitoring instruments.
Contact our team for assistance with custom calibration gas mixtures.
