4-Gas Mixture (50% LEL CH4, 50 ppm CO, 10 ppm H2S, 18% O2)
4-Gas Mixture (50% LEL CH4, 50 ppm CO, 10 ppm H2S, 18% O2)
Our four gas calibration mixture consists of 50% LEL methane, 50 ppm carbon monoxide, 10 ppm hydrogen sulfide, and 18% oxygen. The four gas calibration mixture is typically used for calibrating multi-gas meters for confined space entry. It is NIST traceable and comes with a certificate.
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