Product Description
4 Gas H2S CO CH4 O2 Calibration Gas – 66L Cylinder
This four-gas calibration mixture allows technicians to confirm detector response where both oxygen depletion and lower carbon monoxide alarm thresholds must be validated. The blend activates toxic, oxygen, and combustible channels in one controlled exposure during routine bump testing.
Gas Concentrations
| Component | Concentration |
|---|---|
| Hydrogen Sulfide (H₂S) | 50 PPM |
| Carbon Monoxide (CO) | 30 PPM |
| Methane (CH₄) | 2.5% (50% LEL) |
| Oxygen (O₂) | 12.0% |
| Balance | Nitrogen |
Cylinder Specifications
| Property | Value |
|---|---|
| Cylinder Size | 66L (2.3 ft³) |
| Cylinder Specification | C-10 |
| Cylinder Material | Aluminum |
| Gas Reactivity | Reactive |
What This Cylinder Verifies
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Toxic gas detection at lower CO alarm thresholds
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Oxygen-deficiency alarm activation
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Combustible gas response (methane LEL)
Used when validating detector sensitivity, not just presence detection.
Typical Applications
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Confined space entry checks
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Alarm threshold verification
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Industrial safety monitoring
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Wastewater inspection routes
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Routine bump testing programs
Custom Mixtures Available
We provide calibration mixtures matched to detector alarm setpoints and safety policies.