Hydrogen Sulfide (H2S), Carbon Monoxide (CO), Methane (CH4), Oxygen (O2) 60 Liter $189.05 Hydrogen Sulfide (H2S), Carbon Monoxide (CO), Methane (CH4), Oxygen (O2) quantity Add to cart SKU: GFX60-155-1500-I Category: Gas Cylinders Description Description Hydrogen Sulfide 25 ppm/ Carbon Monoxide 50 ppm/ Methane 2.5% (50% LEL)/ Oxygen 12.0%/ N2 Related products Hydrogen (H₂) Calibration Gas – 50% LEL – 103L Cylinder $95.00 Add to cart Hydrogen Chloride (HCl) Calibration Gas – 5 ppm – 60L Cylinder $304.00 Add to cart Ammonia (NH₃) Calibration Gas $304.00 Select options This product has multiple variants. The options may be chosen on the product page Carbon Dioxide (CO₂) Calibration Gas – 2.5% Vol – 103L Cylinder $109.25 Add to cart