Methane CH4 Calibration Gas or Cal Gas with a concentration of 40% LEL (2% Vol.) balance Air contained in 17L Steel Cylinder that is used for calibration and maintenance of gas detectors. Connection size CGA600, Pressure 240 PSI, Cylinder 17L Steel, Diameter 2.9 inches, Cylinder Height 10.75 inches, Weight 16 oz, Contents 0.6 cu. ft. Use with regulators 71,72-MFV/17,CV-2,75-DFR-CGA600
NIST Calibration Certificate Included. GASCO Calibration Gas is ISO 9001 Certified.