Carbon Monoxide CO, Methane CH4, Hydrogen Sulfide H2S, Oxygen O2 Calibration Gas or Cal Gas with a concentration of 100 PPM Carbon Monoxide CO, 50% LEL Methane CH4, 50 PPM Hydrogen Sulfide H2S, 15% Oxygen O2 balance Nitrogen contained in 10L Aluminum Alloy Cylinder that is used for calibration and maintenance of gas detectors. Connection size , Pressure 160 PSI, Cylinder 10L Aluminum Alloy, Diameter 2.9 inches, Cylinder Height 9.4 inches, Weight 5 oz, Contents 0.35 cu. ft. Use with regulators
NIST Calibration Certificate Included. GASCO Calibration Gas is ISO 9001 Certified.