1002 NORLAB Calibration Gas Mixture Equivalent by GASCO contained in a 103 Liter Disposable Steel Cylinder, Cylinder Connection C-10, Calibration Certificate NIST, Made in the USA

Zero Air (20.9 % Oxygen balance Nitrogen) contained in a 103 Liter Steel cylinder With a C-10 connection. Contains Less than 2 PPM H20, 0.1 PPM THC, 1 PPM CO2, and 1 PPM CO