Product Description
4 Gas H2S CO CH4 O2 Calibration Gas – 120L Cylinder
This four-gas calibration mixture allows technicians to validate detector response where reduced oxygen levels and lower carbon monoxide alarm thresholds must activate reliably. The large 120L cylinder supports repeated daily bump testing across multiple instruments without frequent replacement.
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 | 120L (4.2 ft³) |
| Cylinder Specification | C-10 |
| Cylinder Material | Aluminum |
| Gas Reactivity | Reactive |
What This Cylinder Verifies
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Toxic gas detection at reduced CO alarm thresholds
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Oxygen-deficiency alarm activation
-
Combustible gas response (methane LEL)
Used for confirming alarm sensitivity and detector readiness before entering hazardous environments.
Typical Applications
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Confined space entry programs
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High-volume bump testing routes
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Safety compliance inspections
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Wastewater monitoring systems
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Preventative maintenance calibration
Custom Mixtures Available
Calibration blends can be produced to match detector alarm setpoints and monitoring procedures.
