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  • 34 Liter-Hydrogen Sulfide 25 ppm/ Carbon Monoxide 100 ppm/ Methane 2.5% (50% LEL)/ Oxygen 20.9%/ Nitrogen

    • Hydrogen Sulfide (H₂S) 25 PPM / Carbon Monoxide (CO) 100 PPM / Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 20.9% / Nitrogen BAL 4-Gas Calibration Gas – 34L 500 PSI C-10 Aluminum

    E-Gas Depot

    $202.40
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    SKU:
    155-5700-34LR
    Availability:
    3-5 Business Days + shipping time
    Weight:
    22.40 Ounces
    Width:
    2.90 (in)
    Height:
    10.75 (in)
    Depth:
    2.90 (in)
    Size:
    34L
    Gas Composition:
    H2S / CO / CH4 / O2
    Cylinder Specification:
    C-10
    Cylinder Material:
    Aluminum
    Gas Reactivity:
    Reactive
    Cylinder Pressure:
    500 psi
    Hydrogen Sulfide (H2S) Concentration:
    25 PPM
    Carbon Monoxide (CO) Concentration:
    100 PPM
    Methane (CH4) Concentration:
    2.5% (50% LEL)
    Oxygen (O2) Concentration:
    20.9%
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    Product Description

    H₂S 25 PPM / CO 100 PPM / CH₄ 2.5% (50% LEL) / O₂ 20.9% 4-Gas Calibration Gas – 34L Disposable Cylinder

    This 4-gas calibration blend contains:

    • Hydrogen Sulfide (H₂S) – 25 PPM

    • Carbon Monoxide (CO) – 100 PPM

    • Methane (CH₄) – 2.5% (50% LEL)

    • Oxygen (O₂) – 20.9%

    • Balance Gas – Nitrogen

    Designed for portable multi-gas monitor calibration and bump testing under standard atmospheric oxygen conditions.

    Gas Composition

    H₂S 25 PPM / CO 100 PPM / CH₄ 2.5% (50% LEL) / O₂ 20.9%
    Balance: Nitrogen
    Gas Count: 4

    Cylinder Specifications

    Cylinder Size: 34L (1.2 Cubic Feet)
    Cylinder Pressure: 500 PSI
    Valve Type: C-10
    Cylinder Material: Aluminum
    Gas Reactivity: Reactive
    Cylinder Type: Disposable

    The 34L 500 PSI configuration is optimized for:

    • Mobile safety technicians

    • Smaller confined space programs

    • Lightweight field kits

    • Lower-volume calibration cycles

    Application Positioning

    This blend supports:

    • Routine OSHA-required bump testing

    • Standard atmospheric verification

    • Detector fleet spot-checking

    • Utility and municipal maintenance

    Oxygen at 20.9% simulates ambient air conditions.
    Methane at 2.5% equals 50% LEL for combustible sensor validation.
    CO at 100 PPM aligns with common alarm setpoint testing requirements.

    Why Choose the 34L 500 PSI Format?

    • Compact and easy to transport

    • Lower upfront cost than larger cylinders

    • Ideal for limited-use or rotating compliance schedules

    • Compatible with standard C-10 fixed-flow regulators

    Need Higher Pressure or Larger Volume?

    This blend is available in 44L, 60L, 66L, 116L, and 120L configurations. Contact us for alternate sizes or custom gas concentrations.

    Other Details

    Warranty 24 months

    Product Videos

    Custom Field

    Size 34L
    Gas Composition H2S / CO / CH4 / O2
    Cylinder Specification C-10
    Cylinder Material Aluminum
    Gas Reactivity Reactive
    Cylinder Pressure 500 psi
    Hydrogen Sulfide (H2S) Concentration 25 PPM
    Carbon Monoxide (CO) Concentration 100 PPM
    Methane (CH4) Concentration 2.5% (50% LEL)
    Oxygen (O2) Concentration 20.9%

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