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  • 66 Liter-Hydrogen Sulfide 25 ppm/ Carbon Monoxide 100 ppm/ Methane 2.5% (50% LEL)/ Oxygen 18.0%/ Nitrogen (GC Mix)

    • Hydrogen Sulfide (H₂S) 25 PPM / Carbon Monoxide (CO) 100 PPM / Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 18.0% / Nitrogen BAL 4-Gas Calibration Gas – 66L 1150 PSI C-10 Aluminum

    E-Gas Depot

    $259.60
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    SKU:
    155-5300-FX66
    Availability:
    3-5 Business Days + shipping time
    Weight:
    20.00 Ounces
    Width:
    2.90 (in)
    Height:
    10.60 (in)
    Depth:
    2.90 (in)
    Size:
    66L
    Gas Composition:
    H2S / CO / CH4 / O2
    Cylinder Specification:
    C-10
    Cylinder Material:
    Aluminum
    Gas Reactivity:
    Reactive
    Cylinder Pressure:
    1150 psi
    Hydrogen Sulfide (H2S) Concentration:
    25 PPM
    Carbon Monoxide (CO) Concentration:
    100 PPM
    Methane (CH4) Concentration:
    2.5% (50% LEL)
    Oxygen (O2) Concentration:
    18.0%
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    Product Description

    4-Gas Calibration Gas with 18.0% Oxygen – 66L 1150 PSI Cylinder

    This multi-gas calibration blend is engineered for regulated confined space programs requiring controlled oxygen-deficiency simulation.

    Gas Composition

    • Hydrogen Sulfide (H₂S): 25 PPM

    • Carbon Monoxide (CO): 100 PPM

    • Methane (CH₄): 2.5% (50% LEL)

    • Oxygen (O₂): 18.0%

    • Balance Gas: Nitrogen

    • Gas Count: 4

    The 18.0% oxygen concentration is formulated to validate oxygen-deficiency alarm thresholds below OSHA’s 19.5% standard, providing a deeper deficiency simulation than 18.5% blends.

    Cylinder Specifications

    • Cylinder Size: 66L (2.3 Cubic Feet)

    • Cylinder Pressure: 1150 PSI

    • Valve Type: C-10

    • Cylinder Material: Aluminum

    • Gas Reactivity: Reactive

    The 1150 PSI fill pressure provides extended calibration volume for centralized calibration benches and fleet-level detector maintenance programs.

    Application & Use Case Positioning

    This 18.0% oxygen blend is ideal for:

    • Confined space compliance programs

    • Oxygen-deficiency alarm validation

    • Industrial hygiene audits

    • Multi-gas monitor bump testing

    • Scheduled fleet detector servicing

    Methane at 2.5% equals 50% LEL for combustible sensor validation.
    CO at 100 PPM aligns with common low-alarm calibration thresholds.

    Compared to:

    • 20.9% O₂ → ambient simulation

    • 19.0% O₂ → mild deficiency simulation

    • 18.5% O₂ → OSHA threshold simulation

    • 17.0% O₂ → aggressive deficiency simulation

    This 18.0% blend sits in the controlled deficiency range for programs requiring tighter alarm validation.

    Need a Different Oxygen Level?

    This blend is available in 17.0%, 18.0%, 18.5%, 19.0%, and 20.9% oxygen concentrations across multiple cylinder sizes. Contact us for custom calibration configurations.

     

    Other Details

    Warranty 24 months

    Product Videos

    Custom Field

    Size 66L
    Gas Composition H2S / CO / CH4 / O2
    Cylinder Specification C-10
    Cylinder Material Aluminum
    Gas Reactivity Reactive
    Cylinder Pressure 1150 psi
    Hydrogen Sulfide (H2S) Concentration 25 PPM
    Carbon Monoxide (CO) Concentration 100 PPM
    Methane (CH4) Concentration 2.5% (50% LEL)
    Oxygen (O2) Concentration 18.0%

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