Product Description
4-Gas Calibration Gas for Multi-Gas Detector Testing (H₂S / CO / CH₄ / O₂)
This 4-gas calibration mixture is used for calibration and bump testing of portable multi-gas detectors used in industrial safety, confined space monitoring, and environmental hazard detection.
The mixture contains Hydrogen Sulfide (H₂S) 25 PPM, Carbon Monoxide (CO) 50 PPM, Methane (CH₄) 1.62% (50% LEL LPG equivalent), and Oxygen (O₂) 17.0%, balanced with nitrogen. The lower oxygen concentration allows safety teams to verify detector response to oxygen-deficient atmospheric conditions, which are commonly encountered in confined space environments.
Supplied in a 44L aluminum calibration cylinder, this gas mixture provides a portable calibration solution for technicians performing routine detector maintenance and safety verification in field or facility environments.
The C-10 valve configuration supports compatibility with commonly used calibration regulators designed for portable gas detection instruments.
Gas Concentrations
| Gas | Concentration |
|---|---|
| Hydrogen Sulfide (H₂S) | 25 PPM |
| Carbon Monoxide (CO) | 50 PPM |
| Methane (CH₄) | 1.62% (50% LEL LPG Equivalent) |
| Oxygen (O₂) | 17.0% |
| Balance Gas | Nitrogen |
Cylinder Specifications
| Specification | Value |
|---|---|
| Cylinder Size | 44L |
| Cylinder Material | Aluminum |
| Valve | C-10 |
| Gas Reactivity | Reactive |
Applications
This quad-gas calibration mixture is commonly used to calibrate and verify portable 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 operations
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Manufacturing safety programs
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Wastewater treatment facilities
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Environmental monitoring
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Emergency response gas detection equipment
The mixture supports calibration of portable multi-gas detectors from manufacturers including BW Technologies, MSA, Industrial Scientific, and RKI Instruments.
Routine calibration with certified gas mixtures helps ensure gas detection sensors respond accurately to hazardous atmospheres and remain compliant with recommended maintenance schedules.
If you require a custom calibration mixture or alternate cylinder size, contact our team for a fast quote.
