Chlorine Calibration Gas, 34 L Cylinder Capacity This listing is for each. This item requires special shipping, additional charges may apply. Technical Specification Item Calibration Gas Gas Name Chlorine Gas Mixture 5 ppm Chlorine, Balance Nitrogen Background Gas Nitrogen Cylinder Capacity 34 L Cylinder Material Aluminum For Use With GasAlert Series Models That Include Carbon Monoxide Sensors Connection Size C-10 Max. Pressure 500 psi Cylinder Dia. 3 1/8 in Cylinder Height 10 41/64 in Accuracy +/-5% Calibration Certificate Yes Hazardous Material - Non-Flammable Gas This item has been restricted from sale in the following countries: and Canada.