Calibration Gas - H2S / CH4 / CO - 29L

This calibration gas is calibrated to NIST standards

Features & Applications:

This calibration gas allows you to calibrate your own instruments. All standards are certified to assure quality. Gas mixtures are ideal for multigas monitors. Calibration Gases are stored in lightweight aluminum and steel cylinders designed for easy use. Contains 25ppm H2S (Hydrogen Sulfide), 50%LEL methane, 50ppm CO (Carbon Monoxide), 12% O2 (Oxygen) and balanced with nitrogen.