Helium

For Helium, substance is Helium, verified against its source on 2026-08-05.

What the source says

7440597 | | Helium | (h) | --

— dir.ca.gov, retrieved 2026-08-05

Source

• dir.ca.govhttps://www.dir.ca.gov/title8/5155.html

Last verified against source: 2026-08-05. Scheduled for re-check by: 2027-08-05. This page as Markdown · OKF concept · full dataset as JSON.