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  • 221 Liter-Carbon Monoxide 25 ppm/ Methane 1.0% (20% LEL)/ Oxygen 17.0%/ Nitrogen

    • Carbon Monoxide (CO) 25 PPM / Methane (CH₄) 1.0% (20% LEL) / Oxygen (O₂) 17.0% / Nitrogen (N₂) BAL Custom Mix Calibration Gas – 221L 250 PSI CGA-165 Steel

    E-Gas Depot

    $255.00
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    SKU:
    39-1250-221L
    Availability:
    10 days + shipping time
    Weight:
    100.80 Ounces
    Width:
    9.00 (in)
    Height:
    16.25 (in)
    Depth:
    9.00 (in)
    Size:
    221L
    Gas Composition:
    CO / CH₄ / O₂
    Cylinder Material:
    Steel
    Cylinder Pressure:
    250 PSI
    Gas Reactivity:
    Non-Reactive
    Carbon Monoxide (CO) Concentration:
    25 PPM
    Methane (CH₄) Concentration:
    1.0% (20% LEL)
    Oxygen (O₂) Concentration:
    17.0%
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    Product Description

    221L CO, CH₄ (20% LEL), and O₂ (17%) Custom Mix Calibration Gas for Oxygen Deficiency Calibration

    This 221L custom calibration gas cylinder is built for high-use calibration programs requiring controlled oxygen-deficiency environments and consistent detector performance.

    The mixture includes 1.0% Methane (20% LEL) for controlled combustible gas calibration and 17.0% Oxygen (O₂) to simulate reduced oxygen conditions. With 25 PPM Carbon Monoxide (CO), this blend supports accurate multi-gas detector calibration across toxic, combustible, and oxygen sensors.

    Gas Concentrations

    • Carbon Monoxide (CO): 25 PPM
    • Methane (CH₄): 1.0% (20% LEL)
    • Oxygen (O₂): 17.0%
    • Balance Gas: Nitrogen (N₂)

    Cylinder Specifications

    • Cylinder Size: 221L
    • Pressure: 250 PSI
    • Cylinder Material: Steel
    • Valve Type: CGA-165
    • Reactivity: Non-Reactive

    Applications

    • Oxygen-deficiency simulation
    • Routine and high-frequency calibration programs
    • Confined space safety compliance
    • Industrial hygiene monitoring
    • Multi-detector maintenance workflows

    Why This 221L Calibration Gas

    • Extended runtime for high-use environments
    • Durable steel cylinder for facility applications
    • Designed for 17% oxygen calibration scenarios
    • Reliable for repeat calibration workflows

    Need a Custom Gas Mix?

    We provide custom calibration gas mixtures with fast turnaround. Contact us for a quick quote tailored to your requirements.

     

    Other Details

    Warranty 48 months

    Product Videos

    Custom Field

    Size 221L
    Gas Composition CO / CH₄ / O₂
    Cylinder Material Steel
    Cylinder Pressure 250 PSI
    Gas Reactivity Non-Reactive
    Carbon Monoxide (CO) Concentration 25 PPM
    Methane (CH₄) Concentration 1.0% (20% LEL)
    Oxygen (O₂) Concentration 17.0%

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