Product Description
4-Gas Calibration Gas for Multi-Gas Detector Testing (H₂S / CO / CH₄ / O₂)
This four-gas calibration mixture is formulated to verify the accuracy of portable multi-gas detectors used in confined space monitoring, industrial hygiene programs, and hazardous atmosphere detection.
The mixture contains Hydrogen Sulfide (H₂S) 25 PPM, Carbon Monoxide (CO) 100 PPM, Methane (CH₄) 1.62% (50% LEL LPG equivalent), and Oxygen (O₂) 18.0%, balanced with nitrogen. These concentrations allow technicians to confirm detector response across toxic gas, combustible gas, and oxygen sensors during routine maintenance.
Supplied in a 120L aluminum cylinder pressurized to 1050 PSI, this calibration gas provides a larger-capacity solution suited for organizations maintaining multiple gas detectors or operating structured calibration programs.
The C-10 valve connection allows compatibility with standard calibration regulators commonly used with portable gas detection instruments.
Gas Composition
| Gas | Concentration |
|---|---|
| Hydrogen Sulfide (H₂S) | 25 PPM |
| Carbon Monoxide (CO) | 100 PPM |
| Methane (CH₄) | 1.62% (50% LEL LPG Equivalent) |
| Oxygen (O₂) | 18.0% |
| Balance Gas | Nitrogen |
Cylinder Specifications
| Specification | Value |
|---|---|
| Cylinder Size | 120L |
| Pressure | 1050 PSI |
| Cylinder Material | Aluminum |
| Valve | C-10 |
| Gas Reactivity | Reactive |
| Approximate Volume | 4.2 Cubic Feet |
Common Uses
This quad calibration gas blend is commonly used for maintaining gas detection equipment deployed in:
-
Confined space entry monitoring programs
-
Industrial hygiene inspections
-
Oil & gas facility safety systems
-
Environmental hazard monitoring
-
Wastewater treatment operations
-
Manufacturing plant safety programs
-
Emergency response gas detection equipment
The mixture supports calibration of portable multi-gas detectors from major manufacturers including BW Technologies, MSA, Industrial Scientific, and RKI Instruments.
Regular calibration using certified gas mixtures helps ensure sensors respond correctly to hazardous conditions and maintain compliance with manufacturer maintenance recommendations.
If your application requires a custom calibration mixture or different cylinder size, contact us for a quick quote.
