Lab Update: Trapped Balloon Vacuum Gauge

We added a short guide to the measuring vacuum section that covers the trapped balloon gauge. The write-up walks through how to size the container, prep the airflow holes, and use the balloon expansion as a quick visual check that a bag has pulled down to around 80% of atmospheric pressure.

If you need a reference while setting up a bag, read the new page here: Trapped Balloon Vacuum Gauge.

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