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) 60 ppm, Methane (CH4) 50% LEL, Nitrogen Dioxide (NO2) 10 ppm and Oxygen (O2) 15%. Balance Nitrogen. Available Sizes 17, 34, 105 and 221 Liters.