ISA 60079-26 — Explosive Atmospheres - Part 26: Equipment for Use in Class I, Zone 0 Hazardous (Classified) Locations
Reference: ISA 60079-26 · Scheme: OSHA NRTL product safety. The 2 laboratories below appear in the Current list of Nationally Recognized Testing Laboratories for this standard. Retrieved July 2026; ranking criteria on the methodology page.
| # | Laboratory | Location | Cert / ID | Approved | Registry accreditations |
|---|---|---|---|---|---|
| 1 | UL LLC | Northbrook, Illinois, United States | — | — | 6 |
| 2 | SGS North America, Inc. | Suwanee, Georgia, United States | — | — | 3 |
Facts reproduced from the linked registry as retrieved July 2026. No ratings, no reviews — see methodology.