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Home > Tag Archives: chemical oxygen demand hach

Tag Archives: chemical oxygen demand hach

Free Carbon Dioxide and Chemical Oxygen

October 16, 2024

Problem-free analyzed carbon dioxide that is in the form of carbon dioxide gas contained in water. The content of CO 2-free in pure water at a pressure of 1 atm and a temperature of 25 ° C is about 0.4 ppm. CO 2 in water is obtained from the air of the diffusion process and the results of the process ...