Residual Gas definitions

residual gas

small quantity of gas molecules present in an evacuated space
Found on http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=815-06-12

---

Residual Gas

gas remaining in a cylinder from the previous fill.
Found on https://dipndive.com/blogs/stories/diving-lingo-101-glossary-of-terms-phras

---