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  • 221 Liter-Carbon Monoxide 50 ppm/ Carbon Dioxide 2.5%/ Methane 2.5% (50% LEL)/ Oxygen 12.0%/ Nitrogen

    • Carbon Monoxide (CO) 50 PPM / Carbon Dioxide (CO₂) 2.5% / Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 12.0% / Nitrogen BAL 221L 250 PSI Calibration Gas – Custom Mix

    E-Gas Depot

    $255.00
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    SKU:
    49-0700-221L
    Availability:
    10 days + shipping time
    Weight:
    100.80 Ounces
    Width:
    9.00 (in)
    Height:
    16.25 (in)
    Depth:
    9.00 (in)
    Size:
    221LS
    Gas Composition:
    CO / CO2 / CH4 / O2
    Cylinder Specification:
    CGA-165
    Cylinder Material:
    Steel
    Gas Reactivity:
    Non-Reactive
    Cylinder Pressure:
    250 PSI
    Carbon Monoxide (CO) Concentration:
    50 PPM
    Carbon Dioxide (CO₂) Concentration:
    2.5%
    Methane (CH4) Concentration:
    2.5% (50% LEL)
    Oxygen (O2) Concentration:
    12.0%
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    Product Description

    221L 4-Gas Calibration Gas for Oxygen Deficiency and Multi-Gas Detection

    This 221L calibration gas cylinder is designed for calibration of detectors measuring Carbon Monoxide (CO) 50 PPM, Carbon Dioxide (CO₂) 2.5%, Methane (CH₄) 2.5% (50% LEL), and Oxygen (O₂) 12.0% balanced in Nitrogen. The reduced oxygen concentration enables accurate simulation of oxygen-deficient environments for alarm validation and safety testing.

    221L Calibration Gas Cylinder Specifications – Low Pressure Disposable

    • Cylinder Size: 221L
    • Cylinder Pressure: 250 PSI
    • Cylinder Volume: 7.5 Cubic Feet
    • Valve Type: CGA-165
    • Cylinder Material: Steel
    • Cylinder Type: Disposable
    • Gas Reactivity: Non-Reactive
    • Blend Type: Custom Mix

    Applications for Facility-Scale Oxygen Deficiency Testing

    • Centralized calibration for multiple gas detectors
    • Oxygen deficiency alarm threshold validation
    • Multi-gas detector calibration across all sensor channels
    • Methane LEL sensor verification at scale
    • Industrial safety programs requiring extended calibration cycles

    Why This 221L Cylinder is Built for Controlled High-Volume Use

    The combination of large capacity and 250 PSI low-pressure output allows for steady, controlled gas delivery, reducing regulator strain and supporting consistent calibration workflows. Ideal for facilities managing high volumes of detector testing.

    Custom Calibration Gas Solutions

    We provide custom calibration gas mixtures, alternate oxygen levels, and cylinder configurations tailored to your equipment and compliance requirements.

    Other Details

    Warranty 48 months

    Product Videos

    Custom Field

    Size 221LS
    Gas Composition CO / CO2 / CH4 / O2
    Cylinder Specification CGA-165
    Cylinder Material Steel
    Gas Reactivity Non-Reactive
    Cylinder Pressure 250 PSI
    Carbon Monoxide (CO) Concentration 50 PPM
    Carbon Dioxide (CO₂) Concentration 2.5%
    Methane (CH4) Concentration 2.5% (50% LEL)
    Oxygen (O2) Concentration 12.0%

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