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Shop by Brand - Single Gas Mix - Multi-Gas Mix - Biosystems Replacement Calibration Gas

We've made it easy for you to find your equivalent calibration gas. Just enter your part number in the search box (top right of every page). Or use the filters in the left column to narrow in on your calibration gas. Save up to 50% of the cost of brand name gases. We supply identical mixtures with ISO and NIST certification.

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  1. Biosystems 54-9046E Replacement - 25 PPM Hydrogen Sulfide, 50 PPM Carbon Monoxide, 1.25% CH4 (50% LEL Pentane Simulant), 18% Oxygen, Balance Nitrogen (58L)

    Biosystems 54-9046E Replacement - 25 PPM Hydrogen Sulfide, 50 PPM Carbon Monoxide, 1.25% CH4 (50% LEL Pentane Simulant), 18% Oxygen, Balance Nitrogen (58L)

    $248.00
    25 PPM Hydrogen Sulfide, 50 PPM Carbon Monoxide, 1.25% CH4 (50% LEL Pentane Simulant), 18% Oxygen, Balance Nitrogen, 58 Liter Aluminum Cylinder (Biosystems 54-9046E Equivalent).
  2. Biosystems 54-9044E Replacement - 25 PPM Hydrogen Sulfide, 50 PPM Carbon Monoxide, 1.62% (50% LEL) Propane Simulant, 18% Oxygen, Balance Nitrogen (58L)

    Biosystems 54-9044E Replacement - 25 PPM Hydrogen Sulfide, 50 PPM Carbon Monoxide, 1.62% (50% LEL) Propane Simulant, 18% Oxygen, Balance Nitrogen (58L)

    $248.00
    25 PPM Hydrogen Sulfide, 50 PPM Carbon Monoxide, 1.62% (50% LEL) Propane Simulant, 18% Oxygen, Balance Nitrogen, 58 Liter Aluminum Cylinder (Biosystems 54-9044E Equivalent).
  3. Biosystems 54-9043 Replacement - 25 PPM Hydrogen Sulfide, 50 PPM Carbon Monoxide, 50% LEL Methane, 18% Oxygen, Balance Nitrogen (58L)

    Biosystems 54-9043 Replacement - 25 PPM Hydrogen Sulfide, 50 PPM Carbon Monoxide, 50% LEL Methane, 18% Oxygen, Balance Nitrogen (58L)

    $248.00
    25 PPM Hydrogen Sulfide, 50 PPM Carbon Monoxide, 50% LEL Methane, 18% Oxygen, Balance Nitrogen, 58 Liter Aluminum Cylinder (Biosystems 54-9043 Equivalent).
  4. Biosystems 54-9041 Replacement - 50 PPM Carbon Monoxide, 50% LEL Methane, 20.9% Oxygen (Air), Balance Nitrogen (103L)

    Biosystems 54-9041 Replacement - 50 PPM Carbon Monoxide, 50% LEL Methane, 20.9% Oxygen (Air), Balance Nitrogen (103L)

    $145.00
    50 PPM Carbon Monoxide, 50% LEL Methane, 20.9% Oxygen (Air), Balance Nitrogen, 103 Liter Steel Cylinder (Biosystems 54-9041 Equivalent).
  5. Biosystems Replacement Calibration Gas - 50 PPM Ammonia (29 Liter)

    Biosystems 54-9061 Replacement Calibration Gas - 50 PPM Ammonia (29 Liter)

    $232.00
    50 PPM Ammonia Calibration Gas, Balance Nitrogen, 29 Liter Aluminum Cylinder (Biosystems 54-9061 Equivalent).
  6. Biosystems 54-9049E Replacement - 25 PPM Hydrogen Sulfide, 50 PPM Carbon Monoxide, 1.62% (50% LEL) Propane Simulant, 18% Oxygen, Balance Nitrogen (29L)

    Biosystems 54-9049E Replacement - 25 PPM Hydrogen Sulfide, 50 PPM Carbon Monoxide, 1.62% (50% LEL) Propane Simulant, 18% Oxygen, Balance Nitrogen (29L)

    $165.00
    25 PPM Hydrogen Sulfide, 50 PPM Carbon Monoxide, 1.62% (50% LEL) Propane Simulant, 18% Oxygen, Balance Nitrogen, 29 Liter Aluminum Cylinder (Biosystems 54-9049E Equivalent).
  7. Biosystems 54-9064 Replacement Calibration Gas - 100 PPM Hydrogen / 18% Oxygen (103 Liter)

    Biosystems 54-9064 Replacement Calibration Gas - 100 PPM Hydrogen / 18% Oxygen (103 Liter)

    $145.00
    100 PPM Hydrogen / 18% Oxygen Calibration Gas, Balance Nitrogen, 103 Liter Steel Cylinder (Biosystems 54-9064 Equivalent).
  8. Biosystems 54-9031 Replacement - 50% LEL Methane, 18% Oxygen, Balance Nitrogen (103L)

    Biosystems 54-9031 Replacement - 50% LEL Methane, 18% Oxygen, Balance Nitrogen (103L)

    $145.00
    50% LEL Methane, 18% Oxygen, Balance Nitrogen, 103 Liter Steel Cylinder (Biosystems 54-9031 Equivalent).
  9. Biosystems 54-9034 Replacement Calibration Gas - 25 PPM Hydrogen Sulfide (58 Liter)

    Biosystems 54-9034 Replacement Calibration Gas - 25 PPM Hydrogen Sulfide (58 Liter)

    $150.00
    25 PPM Hydrogen Sulfide Calibration Gas, Balance Nitrogen, 58 Liter Aluminum Cylinder (Biosystems 54-9034 Equivalent).
  10. Biosystems 54-9035 Replacement Calibration Gas - 99.999% by volume Nitrogen (103 Liter)

    Biosystems 54-9035 Replacement Calibration Gas - 99.999% by volume Nitrogen (103 Liter)

    $145.00
    99.999% by volume Nitrogen Calibration Gas, 103 Liter Steel Cylinder (Biosystems 54-9035 Equivalent).
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Brand Replacement
  1. Biosystems
  2. BW Technologies
  3. Drager
  4. Gas Clip Technologies
  5. GfG
  6. Industrial Scientific
  7. Lumidor
  8. MSA
  9. RAE Systems
  10. RKI Instruments
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  2. Multi-Gas Mix
Select Single Gas
  1. Air Zero
  2. Ammonia
  3. Carbon Monoxide
  4. Chlorine
  5. Hydrogen
  6. Hydrogen Chloride
  7. Hydrogen Cyanide
  8. Hydrogen Sulfide
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  10. Methane
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Select Multiple Gases
  1. Carbon Dioxide
  2. Carbon Monoxide
  3. Hydrogen Sulfide
  4. Methane
  5. Oxygen
  6. Pentane
  7. Pentane Simulant
  8. Propane
  9. Propane Simulant
Cylinder Size
  1. 29 Liter Aluminum (8)
  2. 34 Liter Steel (4)
  3. 58 Liter Aluminum (13)
  4. 103 Liter Steel (13)
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