Gasco 34L-421 100 PPM Carbon Monoxide 50% LEL Methane 25 PPM Hydrogen Sulfide 18.0% Oxygen Calibration Gas Nitrogen, 34 Liter, 1 Each

Gasco 34L-421 100 PPM Carbon Monoxide 50% LEL Methane 25 PPM Hydrogen Sulfide 18.0% Oxygen Calibration Gas Nitrogen, 34 Liter, 1 Each

The Gasco 34L-421 100 PPM Carbon Monoxide 50% LEL Methane 25 PPM Hydrogen Sulfide 18.0% Oxygen Calibration Gas Nitrogen, 34 Liter, is a precision calibration gas used to calibrate sensors in gas detection equipment for environmental emissions monitoring, industrial hygiene monitors, and trace impurity analyzers. Additionally, it is fully compatible with all manufacturers' calibration sensors, equipment, and detectors. Exceeds or meets the requirements of Gas Detection Equipment Manufacturers and precision blended and inspected to industry standards - National Institute of Standards and Technology (NIST) traceable and certified. Made in the USA by Gasco.