Can you distinguish between industrial oxygen and medical oxygen? Probably everyone has their own method.
Industrial oxygen generally only requires oxygen purity, and has no special requirements for other sanitary conditions. At the same time, it also contains excessive carbon monoxide, methane and other harmful gases, and the content of moisture, bacteria and dust is also high. Industrial oxygen is mainly used for welding, gas welding, Gas cutting etc.
The biggest difference between medical oxygen and industrial oxygen is the control of moisture in oxygen. We often have this experience in our lives. After the surface is smooth, rust-free iron will not rust after a long time in the open, but it will rust after a heavy rain. This is because oxygen only oxidizes a large number of iron molecules in the presence of water. In addition, after iron oxidation, not only rust but also hydrogen and other harmful gases are discharged. Iron is oxidized to form rust, which is very loose and easily forms small particles and mixes with oxygen. Inhaled by the patient, causing infection and other respiratory damage. Therefore, it is extremely important to minimize the moisture content in oxygen in the production of medical oxygen.
Industrial oxygen is a gas used in industrial production and product processing. The quality requirements are low, and the purity is generally required to be above 99% to be qualified. The filling procedure is not as strict as that of medical oxygen. Moisture and other impurities are often mixed in and remain in the oxygen cylinder. The water mixed and remaining in the cylinder will cause the inner wall of the oxygen cylinder to rust, which will make the gas in the cylinder smelly.
The smelling method is not very effective for the industrial oxygen filled with new oxygen cylinders, because the difference between the oxygen cylinders filled with medical oxygen and the oxygen cylinders filled with industrial oxygen is difficult to detect through human sense of smell when they are first used. But with the passage of time, the degree of rust in the industrial oxygen cylinder gradually deepens. Turn on the switch of the oxygen cylinder slightly (the switch cannot be turned on too much), and you can smell strong sulfur, rust, or sour smell, which is probably not medical Oxygen Because there is a rubber sealing ring in the valve body of the oxygen cylinder, it is normal that some oxygen cylinders can smell the rubber.