Product Description
4-Gas Calibration Gas for Portable Gas Detectors (H₂S / CO / CH₄ / O₂)
This 4-gas calibration mixture is formulated for routine calibration and bump testing of portable multi-gas detectors used in industrial safety, confined space monitoring, and environmental hazard detection.
The gas blend contains Hydrogen Sulfide (H₂S) 25 PPM, Carbon Monoxide (CO) 50 PPM, Methane (CH₄) 1.62% (50% LEL LPG equivalent), and Oxygen (O₂) 18.0%, balanced with nitrogen. These concentrations represent a widely used standard quad-gas calibration profile for verifying detector response across multiple sensor types.
Supplied in a 34L disposable aluminum calibration cylinder, this mixture provides a portable solution for technicians performing routine detector maintenance in field environments. The 500 PSI cylinder pressure and C-10 valve connection support compatibility with common calibration regulators used in gas detection programs.
Gas Concentrations
| Gas | Concentration |
|---|---|
| Hydrogen Sulfide (H₂S) | 25 PPM |
| Carbon Monoxide (CO) | 50 PPM |
| Methane (CH₄) | 1.62% (50% LEL LPG Equivalent) |
| Oxygen (O₂) | 18.0% |
| Balance Gas | Nitrogen |
Cylinder Specifications
| Specification | Value |
|---|---|
| Cylinder Size | 34L |
| Pressure | 500 PSI |
| Cylinder Material | Aluminum |
| Valve | C-10 |
| Cylinder Type | Disposable |
| Gas Reactivity | Reactive |
| Approximate Volume | 1.2 Cubic Feet |
Common Applications
This quad-gas calibration mixture is used to maintain and verify gas detection equipment used in:
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Confined space entry safety programs
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Industrial hygiene monitoring
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Oil and gas field operations
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Wastewater treatment facilities
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Environmental hazard detection
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Fire department and emergency response equipment
The mixture is compatible with many portable gas detectors, including models from BW Technologies, Industrial Scientific, MSA, RKI Instruments, and other multi-gas monitoring platforms.
Routine calibration using certified gas mixtures helps ensure gas detectors respond accurately to hazardous atmospheres and remain compliant with manufacturer maintenance recommendations.
If you require a custom gas mixture or alternate cylinder size, contact us for a fast quote. We manufacture calibration gases for a wide range of industrial gas detection instruments.
