Product Description
4-Gas Calibration Gas for Portable Multi-Gas Detector Testing (H₂S / CO / CH₄ / O₂)
This quad-gas calibration mixture is formulated for verifying the performance of portable gas detectors used to monitor hazardous atmospheres in industrial and confined space environments.
The mixture contains Hydrogen Sulfide (H₂S) 25 PPM, Carbon Monoxide (CO) 50 PPM, Methane (CH₄) 1.62% (32% LEL), and Oxygen (O₂) 19.0%, balanced with nitrogen. These concentrations allow technicians to evaluate sensor response for toxic gas, combustible gas, and oxygen detection during calibration and bump testing procedures.
Supplied in a 116L aluminum cylinder pressurized to 1000 PSI, this calibration gas provides a larger capacity option for facilities performing frequent detector calibration or maintaining multiple gas monitoring instruments.
The C-10 valve connection ensures compatibility with standard calibration regulators used with most portable gas detection systems.
Gas Composition
| Gas | Concentration |
|---|---|
| Hydrogen Sulfide (H₂S) | 25 PPM |
| Carbon Monoxide (CO) | 50 PPM |
| Methane (CH₄) | 1.62% (32% LEL) |
| Oxygen (O₂) | 19.0% |
| Balance Gas | Nitrogen |
Cylinder Specifications
| Specification | Value |
|---|---|
| Cylinder Size | 116L |
| Pressure | 1000 PSI |
| Cylinder Material | Aluminum |
| Valve | C-10 |
| Gas Reactivity | Reactive |
| Approximate Volume | 4.0 Cubic Feet |
Applications
This four-gas calibration cylinder is commonly used when maintaining portable gas detection equipment deployed in:
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Confined space entry safety programs
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Industrial hygiene monitoring
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Oil and gas production facilities
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Chemical processing environments
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Wastewater treatment operations
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Environmental hazard monitoring
The mixture supports calibration of portable multi-gas detectors manufactured by companies 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 you require different gas concentrations, alternate cylinder sizes, or a custom calibration mixture, contact us for a quick quote.
