The (PRICE/EACH)-CYLINDR:1.45PCT.CH4,15PCT.O2,60CO, 20H2S, 10SO2 (Part Number: 10117738) is a high-performance gas cylinder manufactured by MSA. This cylinder contains a precise mixture of gases, including 1.45% methane, 15% oxygen, 60 ppm carbon monoxide, 20 ppm hydrogen sulfide, and 10 ppm sulfur dioxide. With its accurate gas composition, this cylinder is ideal for calibration and testing purposes. Trust MSA to provide reliable and accurate gas cylinders for your gas detection needs.