UL 668
For UL 668, standard title is Hose Valves For Fire Protection Service; status is listed as appropriate, recorded from its source on 2026-08-10.
- Test standard
- UL 668 verified
- Standard title
- Hose Valves For Fire Protection Service 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 668 | Hose Valves For Fire Protection Service |
— osha.gov, retrieved 2026-08-10
Source
- osha.govhttps://www.osha.gov/nationally-recognized-testing-laboratory-program/list-standards