# UL 1285 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard For UL 1285, standard title is Pipe and Couplings, Polyvinyl Chloride (PVC) for Underground Fire Service; nrtl is NSF; laboratory is NSF International; status is currently recognized, recorded from its source on 2026-08-10. - **Test standard:** UL 1285 _(verified: appears in the quote below)_ - **Standard title:** Pipe and Couplings, Polyvinyl Chloride (PVC) for Underground Fire Service _(verified: appears in the quote below)_ - **NRTL:** NSF _(verified: appears in the quote below)_ - **Laboratory:** NSF International _(verified: appears in the quote below)_ - **Status:** currently recognized _(our reading, not quoted from the source)_ ## What the source says > UL 1285 | Pipe and Couplings, Polyvinyl Chloride (PVC) for Underground Fire Service | ## Source - https://www.osha.gov/nationally-recognized-testing-laboratory-program/nsf Last verified: 2026-08-10. Review by: 2026-11-08. Part of [Which OSHA-recognized labs (NRTLs) can certify to a given test standard](https://referencesource.org/nrtl-recognized-test-standards/).