Product Description
High-Capacity Custom 4-Gas Calibration Mixture for Detector Maintenance Programs
This custom 4-gas calibration mixture contains Hydrogen Sulfide (H₂S) 25 ppm, Carbon Monoxide (CO) 100 ppm, Methane (CH₄) 1.25% (25% LEL), and Oxygen (O₂) 19.0% balanced with Nitrogen.
The mixture is used for calibration and bump testing of portable multi-gas detectors used to monitor toxic gas exposure, combustible gas hazards and oxygen levels in hazardous work environments.
Supplied in a 120L aluminum cylinder pressurized to 1050 PSI with a C-10 valve, this cylinder provides extended calibration capacity for facilities maintaining large fleets of 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) | 19.0% |
| Balance Gas | Nitrogen |
The 19.0% oxygen concentration simulates a reduced-oxygen atmosphere, allowing technicians to verify detector response to oxygen deficiency conditions while simultaneously testing combustible and toxic gas sensors.
Cylinder Specifications
| Specification | Value |
|---|---|
| Cylinder Size | 120L |
| Pressure | 1050 PSI |
| Cylinder Material | Aluminum |
| Valve Type | C-10 |
| Cylinder Type | Disposable |
| Gas Reactivity | Reactive |
| Volume Equivalent | 4.2 Cubic Feet |
The 120L cylinder size is commonly used by industrial safety departments performing frequent bump testing and calibration across multiple portable gas detectors.
Typical Applications
• Portable gas detector calibration
• Multi-gas monitor bump testing
• Confined space monitoring
• Industrial hygiene safety programs
• Gas detector sensor verification
Routine calibration ensures detectors respond correctly to hydrogen sulfide exposure, carbon monoxide hazards, combustible methane concentrations and oxygen-deficient environments.
Custom Calibration Gas Mixtures Available
If your gas detection instrument 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.
