UL 497B
What is the laboratory for UL 497B?
For UL 497B, laboratory is UL LLC; standard title is Protectors for Data Communication and Fire Alarm Circuits, verified against its source on 2026-09-17.
UL 497B | Protectors for Data Communication and Fire Alarm Circuits |
— osha.gov, retrieved 2026-08-10
- Laboratory
- UL LLC
- Standard number
- UL 497B verified
- Standard title
- Protectors for Data Communication and Fire Alarm Circuits verified
Source
- osha.govhttps://www.osha.gov/nationally-recognized-testing-laboratory-program/ul