Product Description
4-Gas Calibration Gas for Portable Gas Detector Maintenance (H₂S / CO / CH₄ / O₂)
This quad-gas calibration mixture is designed to verify the performance of portable gas detectors used to monitor hazardous atmospheres containing toxic gases, combustible gases, and oxygen variations.
The blend contains Hydrogen Sulfide (H₂S) 25 PPM, Carbon Monoxide (CO) 50 PPM, Methane (CH₄) 1.5% (30% LEL), and Oxygen (O₂) 20.9%, balanced with nitrogen. These concentrations allow technicians to confirm detector response across multiple sensing channels during bump testing and routine calibration procedures.
Supplied in a 34L disposable aluminum cylinder pressurized to 500 PSI, this compact calibration gas solution is well suited for technicians performing field calibration or maintaining portable gas detection equipment across multiple job sites.
The C-10 valve interface allows the cylinder to be used with standard calibration regulators commonly used for portable gas detection systems.
Gas Composition
| Gas | Concentration |
|---|---|
| Hydrogen Sulfide (H₂S) | 25 PPM |
| Carbon Monoxide (CO) | 50 PPM |
| Methane (CH₄) | 1.5% (30% LEL) |
| Oxygen (O₂) | 20.9% |
| 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 |
Typical Applications
This four-gas calibration cylinder is commonly used when servicing portable gas detection equipment deployed in environments such as:
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Confined space entry monitoring
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Industrial hygiene and workplace safety programs
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Oil and gas operations
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Chemical manufacturing facilities
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Wastewater treatment plants
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Environmental hazard monitoring
The mixture supports calibration of portable multi-gas detectors produced by manufacturers such as MSA, BW Technologies, Industrial Scientific, and RKI Instruments.
Routine calibration with certified gas mixtures helps ensure detectors provide reliable readings and respond accurately to hazardous atmospheric conditions.
If your application requires different gas concentrations, alternate cylinder sizes, or a custom calibration gas mixture, contact us for a quick quote.
