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  • 120 Liter-Hydrogen Sulfide 25 ppm/ Carbon Monoxide 200 ppm/ Methane 2.5% (50% LEL)/ Oxygen 17.0%/ Nitrogen

    • Hydrogen Sulfide (H₂S) 25 PPM / Carbon Monoxide (CO) 200 PPM / Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 17.0% / Nitrogen BAL 4-Gas Calibration Gas – 120L 1050 PSI C-10 Aluminum

    E-Gas Depot

    $404.80
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    SKU:
    155-5900-FX120
    Availability:
    3-5 Business Days + shipping time
    Weight:
    48.00 Ounces
    Width:
    3.50 (in)
    Height:
    15.00 (in)
    Depth:
    3.50 (in)
    Size:
    120L
    Gas Composition:
    H2S / CO / CH4 / O2
    Cylinder Specification:
    C-10
    Cylinder Material:
    Aluminum
    Gas Reactivity:
    Reactive
    Cylinder Pressure:
    1050 PSI
    Hydrogen Sulfide (H2S) Concentration:
    25 PPM
    Carbon Monoxide (CO) Concentration:
    200 PPM
    Methane (CH4) Concentration:
    2.5% (50% LEL)
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    Product Description

    H₂S 25 PPM / CO 200 PPM / CH₄ 2.5% (50% LEL) / O₂ 17.0% 4-Gas Calibration Gas – 120L Cylinder

    This high-capacity 4-gas calibration blend contains:

    • Hydrogen Sulfide (H₂S) – 25 PPM

    • Carbon Monoxide (CO) – 200 PPM

    • Methane (CH₄) – 2.5% (50% LEL)

    • Oxygen (O₂) – 17.0%

    • Balance Gas – Nitrogen

    Designed for routine calibration and bump testing of portable and fixed multi-gas monitors in industrial, municipal, and energy-sector environments.

    Gas Composition

    H₂S 25 PPM / CO 200 PPM / CH₄ 2.5% (50% LEL) / O₂ 17.0%
    Balance: Nitrogen
    Gas Count: 4

    Cylinder Specifications

    Cylinder Size: 120L (4.2 Cubic Feet)
    Cylinder Pressure: 1050 PSI
    Valve Type: C-10
    Cylinder Material: Aluminum
    Gas Reactivity: Reactive

    The 120L 1050 PSI format provides extended calibration cycles and reduced cylinder replacement frequency for high-usage programs.

    Applications & Operational Use

    • Large confined space programs

    • Facility-wide multi-gas monitor calibration

    • Maintenance departments managing multiple detectors

    • Oil & gas operations

    • Wastewater and utility compliance

    The 2.5% methane concentration represents 50% LEL for accurate LEL sensor verification.
    The 17.0% oxygen concentration supports oxygen-deficiency alarm testing.

    Why Choose 120L Over Smaller Cylinders?

    • Higher total calibration cycles per cylinder

    • Reduced downtime for safety teams

    • Lower cost per bump test over time

    • Ideal for centralized calibration stations

    Need Alternate PSI, Valve, or Custom Blend?

    We produce calibration gases across a wide range of cylinder sizes and specifications.
    Contact us for custom concentrations or alternate configurations.

    Other Details

    Warranty 24 months

    Product Videos

    Custom Field

    Size 120L
    Gas Composition H2S / CO / CH4 / O2
    Cylinder Specification C-10
    Cylinder Material Aluminum
    Gas Reactivity Reactive
    Cylinder Pressure 1050 PSI
    Hydrogen Sulfide (H2S) Concentration 25 PPM
    Carbon Monoxide (CO) Concentration 200 PPM
    Methane (CH4) Concentration 2.5% (50% LEL)

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