UL 1474
For UL 1474, standard title is Adjustable Drop Nipples for Sprinkler Systems; status is listed as appropriate, recorded from its source on 2026-08-10.
- Test standard
- UL 1474 verified
- Standard title
- Adjustable Drop Nipples for Sprinkler Systems 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 1474 | Adjustable Drop Nipples for Sprinkler Systems |
— osha.gov, retrieved 2026-08-10
Source
- osha.govhttps://www.osha.gov/nationally-recognized-testing-laboratory-program/list-standards