UL 1738
For UL 1738, standard title is Venting Systems for Gas-Burning Appliances, Categories II, III, and IV; status is listed as appropriate, recorded from its source on 2026-08-10.
- Test standard
- UL 1738 verified
- Standard title
- Venting Systems for Gas-Burning Appliances, Categories II, III, and IV verified
- Status
- listed as appropriate our reading
Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.
What the source says
UL 1738 | Venting Systems for Gas-Burning Appliances, Categories II, III, and IV |
— osha.gov, retrieved 2026-08-10
Source
- osha.govhttps://www.osha.gov/nationally-recognized-testing-laboratory-program/list-standards