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) 100 ppm, Pentane (C5H12) 25% LEL, Carbon Dioxide (CO2) 2.5% and Oxygen (O2) 19%. Balance Nitrogen. Available Sizes 17, 34, 105 and 221 Liters.