CalGasOnline is an authorized distributor of GASCO, manufacturer of calibration gas.
GASCO's precision and quality is consistent with NIST standards.
3-Day Lead Times, many in stock.
Gasco Calibration Gas Cylinder with Carbon Monoxide (CO) 500 ppm, Methane (CH4) 50% LEL 2.5% Vol, Hydrogen Sulfide (H2S) 40 ppm, Oxygen (O2) 20.9% and Carbon Dioxide (CO2) 3000 ppm. Balance Nitrogen. Available Sizes 34, 44, 58, 66 and 116 Liters.