In a vacuum line initial pressure is 1.8*10-3 mbar and 5.6*10-3 mbar after 40min. what is the leak percentage of air (Line vol is 366cm3)?

04 April 2024 0 8K Report

In a vacuum line, the initial pressure is 1.8*10-3 mbar, and after 40 minutes, the line pressure is 5.6*10-3 mbar. The line volume is 366 cm3. Assuming that atmospheric oxygen is 21%, what is the percentage of oxygen that leaks between 40 minutes?

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