Product Description
4-Gas Calibration Gas for Portable Multi-Gas Detector Calibration (H₂S / CO / CH₄ / O₂)
This four-gas calibration mixture is designed to verify the accuracy and response of portable gas detection instruments used to monitor toxic gases, combustible gases, and oxygen levels in hazardous environments.
The mixture contains Hydrogen Sulfide (H₂S) 25 PPM, Carbon Monoxide (CO) 20 PPM, Methane (CH₄) 1.5% (30% LEL), and Oxygen (O₂) 20.9%, balanced with nitrogen. These concentrations allow technicians to test sensor response across multiple channels during bump testing and scheduled calibration procedures.
Supplied in a 60L aluminum cylinder pressurized to 1000 PSI, this cylinder provides a portable yet practical volume for routine detector maintenance in field service or industrial safety programs.
The C-10 valve connection supports compatibility with standard calibration regulators used for most portable multi-gas detectors.
Gas Composition
| Gas | Concentration |
|---|---|
| Hydrogen Sulfide (H₂S) | 25 PPM |
| Carbon Monoxide (CO) | 20 PPM |
| Methane (CH₄) | 1.5% (30% LEL) |
| Oxygen (O₂) | 20.9% |
| Balance Gas | Nitrogen |
Cylinder Specifications
| Specification | Value |
|---|---|
| Cylinder Size | 60L |
| Pressure | 1000 PSI |
| Cylinder Material | Aluminum |
| Valve | C-10 |
| Gas Reactivity | Reactive |
| Approximate Volume | 2.1 Cubic Feet |
Typical Applications
This quad-gas calibration cylinder is commonly used for maintenance of portable gas detection instruments operating in environments such as:
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Confined space entry programs
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Industrial hygiene monitoring
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Oil and gas facilities
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Chemical processing plants
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Wastewater treatment systems
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Environmental hazard monitoring
The mixture is compatible with portable multi-gas detectors produced by manufacturers such as MSA, BW Technologies, Industrial Scientific, RKI Instruments, and Honeywell.
Routine calibration using certified gas mixtures helps maintain detector accuracy and ensures reliable response to hazardous atmospheric conditions.
If you require different concentrations, alternate cylinder sizes, or a custom calibration mixture, contact us for a quick quote.
