Product Description
66L High-Pressure 4-Gas Calibration Cylinder – 250 PPM CO with 18% Oxygen
This 4-gas calibration blend is engineered for facilities requiring elevated carbon monoxide validation combined with oxygen-deficiency simulation.
With CO at 250 PPM and oxygen reduced to 18.0%, this mixture confirms toxic, combustible, and oxygen channel performance under more demanding alarm 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 low-to-moderate H₂S alarm sensitivity.
• 250 PPM CO validates higher CO alarm thresholds.
• 2.5% methane equals 50% LEL for combustible sensor confirmation.
• 18.0% oxygen simulates controlled deficiency below OSHA’s 19.5% threshold.
This blend allows technicians to confirm CO stress response while validating oxygen depletion alarms in a single calibration cycle.
Cylinder Specifications
Cylinder Capacity: 66L (2.3 Cubic Feet)
Fill Pressure: 1150 PSI
Valve Type: C-10
Cylinder Material: Aluminum
Gas Reactivity: Reactive
The 1150 PSI fill provides extended calibration output, making this cylinder ideal for mobile service teams and high-use environments.
Ideal For
• Confined space compliance programs
• Energy and combustion-heavy facilities
• Wastewater treatment plants
• Industrial hygiene departments
• Fleet-wide multi-gas servicing operations
The 66L high-pressure configuration balances portability with longer service intervals.