Reference Source

UL 991

What is the laboratory for UL 991?

For UL 991, laboratory is UL LLC; standard title is Tests for Safety-Related Controls Employing Solid-State Devices, verified against its source on 2026-09-17.

UL 991 | Tests for Safety-Related Controls Employing Solid-State Devices |

— osha.gov, retrieved 2026-08-10

Laboratory
UL LLC
Standard number
UL 991 verified
Standard title
Tests for Safety-Related Controls Employing Solid-State Devices verified
Sourceosha.gov
Verified
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DatasetWhich OSHA NRTL is recognized for which test standard: all 21 labs' scopes of recognition, cross-referenced

Source

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