Product Description
4-Gas Calibration Gas for Multi-Gas Detector Verification
This 4-gas calibration mixture contains Hydrogen Sulfide (H₂S) 20 ppm, Carbon Monoxide (CO) 60 ppm, Methane (CH₄) 1.45% (58% LEL Pentane Equivalent), and Oxygen (O₂) 15.0% balanced with Nitrogen. The mixture is designed for accurate calibration and bump testing of portable multi-gas detectors used in industrial safety monitoring.
The gas is supplied in a 120L disposable aluminum cylinder pressurized to 1050 PSI with a C-10 valve, providing extended calibration capacity for routine detector maintenance programs.
Gas Composition – Hydrogen Sulfide (H₂S), Carbon Monoxide (CO), Methane (CH₄) and Oxygen (O₂)
| Gas | Concentration |
|---|---|
| Hydrogen Sulfide (H₂S) | 20 ppm |
| Carbon Monoxide (CO) | 60 ppm |
| Methane (CH₄) | 1.45% (58% LEL Pentane Equivalent) |
| Oxygen (O₂) | 15.0% |
| Balance Gas | Nitrogen |
This H2S CO CH4 O2 calibration gas mixture is widely used for portable gas detector calibration and bump testing to verify instrument response before entering hazardous work environments.
Cylinder Specifications
| Specification | Value |
|---|---|
| Cylinder Size | 120L |
| Pressure | 1050 PSI |
| Cylinder Material | Aluminum |
| Valve Type | C-10 |
| Cylinder Type | Disposable |
| Gas Reactivity | Reactive |
| Volume Equivalent | 4.2 Cubic Feet |
The larger 120L calibration gas cylinder provides a longer service life compared to smaller cylinders, making it ideal for safety teams that perform frequent calibration or maintain multiple gas detection instruments.
Typical Applications
• Portable 4-gas detector calibration
• Multi-gas monitor bump testing
• Industrial hygiene monitoring programs
• Confined space entry safety checks
• Gas detector sensor verification and maintenance
Regular calibration ensures reliable detection of hydrogen sulfide exposure, carbon monoxide hazards, combustible gas levels, and oxygen concentration.
Custom Calibration Gas Mixtures Available
If your gas detector requires a different concentration or mixture, custom calibration gas blends are available. We supply specialty calibration gases for a wide range of portable gas monitors and industrial safety applications.
Contact our team for assistance with custom calibration gas mixtures.
