MSA Calibration Testing Gas

MSA CALIBRATION GAS (CH4 1.45%, O2 15%, CO 60PPM, H2S 20PPM), 34L, 10048280....(LOC 8 C-3)

The gas mixture in calibration gas cylinders is certified to be prepared gravimetrically, using NIST traceable weights. The lot number and nominal value of the gas constituents in volume, percent by mass, PPM, or volume is specified on the cylinder.