UL 651

For UL 651, standard title is Schedule 40 and 80 PVC Conduit; nrtl is ITS; laboratory is Intertek Testing Services NA, Inc; status is currently recognized, recorded from its source on 2026-08-10.

Test standard: UL 651 verified
Standard title: Schedule 40 and 80 PVC Conduit verified
NRTL: ITS verified
Laboratory: Intertek Testing Services NA, Inc. verified
Status: currently recognized our reading

Sourceosha.gov

Verified2026-08-10

Review by2026-11-08

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 651 | Schedule 40 and 80 PVC Conduit |

— osha.gov, retrieved 2026-08-10

Source

osha.govhttps://www.osha.gov/nationally-recognized-testing-laboratory-program/its

Last verified against source: 2026-08-10. Due for re-check by 2026-11-08. This page as Markdown · OKF bundle · full dataset as JSON.