Product Description
120L 4-Gas Calibration Cylinder – 250 PPM CO with 18% Oxygen Deficiency Simulation
This high-capacity 4-gas calibration blend is engineered for facilities requiring elevated carbon monoxide validation combined with controlled oxygen-deficiency alarm testing.
With carbon monoxide at 250 PPM and oxygen reduced to 18.0%, this mixture confirms toxic, combustible, and oxygen channel performance under demanding confined-space conditions.
Gas Composition Profile
Hydrogen Sulfide (H₂S): 15 PPM
Carbon Monoxide (CO): 250 PPM
Methane (CH₄): 2.5% (50% LEL)
Oxygen (O₂): 18.0%
Balance Gas: Nitrogen
• 15 PPM H₂S verifies lower H₂S alarm programming.
• 250 PPM CO validates high CO alarm setpoints.
• 2.5% methane equals 50% LEL for combustible sensor confirmation.
• 18.0% oxygen simulates deficiency below OSHA’s 19.5% threshold.
This blend allows technicians to stress CO response while simultaneously validating oxygen depletion alarms within a single calibration cycle.
Cylinder Specifications
Cylinder Capacity: 120L (4.2 Cubic Feet)
Fill Pressure: 1050 PSI
Valve Type: C-10
Cylinder Material: Aluminum
Gas Reactivity: Reactive
The 1050 PSI fill supports extended calibration cycles and reduces cylinder change-out frequency in high-volume servicing environments.
Ideal For
• Centralized calibration stations
• Large confined space programs
• Energy and combustion-heavy facilities
• Industrial hygiene departments
• Fleet-wide multi-gas servicing operations
The 120L configuration is selected when operational efficiency and aggressive alarm validation are both priorities.
