... Infrared; Gas Chromatography - High Efficiency Discharge Detector, Ultrasonic detector, carrier gas when analyzing hydrogen in helium ... 1995CylinderChemical industry, glasses, synthetic cut stone.Industrial carbon dioxide ≥99.8GB-6052-85CylinderChemical industry, ... 996GB/8979-96CylinderChemical industry, glasses, smelting, protectionCarbon Monoxide ≥99.9Q/DY01-98CylinderChemical industry, medical, ...