Reference Source

UL 104

For UL 104, standard title is Elevator Door Locking Devices and Contacts; nrtl is UL; laboratory is UL LLC; status is currently recognized, recorded from its source on 2026-08-10.

Test standard
UL 104 verified
Standard title
Elevator Door Locking Devices and Contacts verified
NRTL
UL verified
Laboratory
UL LLC verified
Status
currently recognized our reading
Sourceosha.gov
Verified
Review by
DatasetWhich OSHA-recognized labs (NRTLs) can certify to a given test standard

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 104 | Elevator Door Locking Devices and Contacts |

osha.gov, retrieved 2026-08-10

Source

Last verified against source: . Due for re-check by . This page as Markdown · OKF bundle · full dataset as JSON.