Topic$-$A plan to measure the $O_2$ permeability $P_{O2}$ through polymer coatings

under different humidity.

Description$-$ A few years ago the British journal The Chemical Engineers reported a news on an invention by Chinese researchers, who sprayed a thin film of polymer on bananas to extent their shelf life.

Now you are required to measure the permeability of oxygen $P_{O2}$ of different polymer films, so that a more effective composition of polymers for coating bananas can be determined. As the polymer film will be in contact with the highly water containing banana peel in practice, the effect of humidity on oxygen permeation should be taken into consideration.

Write a report detailing your plan on how you are going to carry out the measurement.

$1.$ Propose an experimental method and explain why it should be the choice.

$2.$ Describe your experimental setup and operation procedures in detail.

$3.$Imagine you are to design and assemble the setup by yourself.

$4.$ Illustrate clearly how to calculate $P_{O2}$ from the data gathered in the experiment.

$5.$ Your task is to make measurement, not to make the polymer membrane.

$6.$Spend time on thinking and planning, as well as on searching the Internet.

Not to discuss with your classmates, not to plagiarize your classmates' work. please provide with a detailed report.