OSHA has issued a final decision to remove several withdrawn HAZLOC test standards from the NRTL Program’s List of Appropriate Test Standards. These final actions are detailed below in Table 1. Additionally, Table 1 lists the replacement test standard that OSHA has already incorporated into the NRTL Program’s List of Appropriate Test Standards (for informational purposes only).
ISA 12.12.01, Nonincendive Electrical Equipment for Use in Class I and II, Division 2 and Class III, Divisions 1 and 2 Hazardous (Classified) Locations was replaced with UL 121201, Nonincendive Electrical Equipment for Use in Class I and II, Division 2 and Class III, Divisions 1 and 2 Hazardous (Classified) Locations.
| Deleted test standard | Test standard title | Reason for deletion | Replacement standard |
|---|---|---|---|
| ISA 12.12.01 | Nonincendive Electrical Equipment for Use in Class I and II, Division 2 and Class III, Divisions 1 and 2 Hazardous (Classified) Locations | Withdrawn | UL 121201 Nonincendive Electrical Equipment for Use in Class I and II, Division 2 and Class III, Divisions 1 and 2 Hazardous (Classified) Locations. |
| ISA 60079-0 | Explosive Atmospheres—Part 0: Equipment—General Requirements | Withdrawn | None. |
| ISA 60079-1 | Explosive Atmospheres—Part 1: Equipment Protection by Flameproof Enclosures “d” | Withdrawn | None. |
| ISA 60079-6 | Explosive Atmospheres—Part 6: Equipment Protection by Oil Immersion “o” | Withdrawn | None. |
| ISA 60079-7 | Explosive Atmospheres—Part 7: Equipment Protection by Increased Safety “e” | Withdrawn | None. |
| ISA 60079-11 | Explosive Atmospheres—Part 11: Equipment Protection by Intrinsic Safety “i” | Withdrawn | None. |
| ISA 60079-15 | Explosive Atmospheres—Part 15: Equipment Protection by Type of Protection “n” | Withdrawn | None. |
| ISA 60079-25 | Standard for Explosive Atmospheres—Part 25: Intrinsically Safe Electrical Systems | Withdrawn | None. |
| ISA 60079-28 | Explosive Atmospheres—Part 28: Protection of Equipment and Transmission Systems Using Optical Radiation | Withdrawn | None. |
| ISA 60079-31 | Explosive Atmospheres—Part 31: Equipment Dust Ignition Protection by Enclosure “t” | Withdrawn | None. |
| ISA 61241-0 | Electrical Apparatus for Use in Zone 20, Zone 21 and Zone 22 Hazardous (Classified) Locations—General Requirements | Withdrawn | None. |
| ISA 61241-1 | Electrical Apparatus for Use in Zone 21 and Zone 22 Hazardous (Classified) Locations—Protection by Enclosures “tD” | Withdrawn | None. |
| ISA 61241-2 | Electrical Apparatus for Use in Zone 21 and Zone 22 Hazardous (Classified) Locations—Protection by Pressurization “pD” | Withdrawn | None. |
| ISA 61241-11 | Electrical Apparatus for Use in Zone 20, Zone 21 and Zone 22 Hazardous (Classified) Locations—Protection by Intrinsic Safety “iD” | Withdrawn | None. |
| ISA 61241-18 | Electrical Apparatus for Use in Zone 20, Zone 21 and Zone 22 Hazardous (Classified) Locations—Protection by Encapsulation “mD” | Withdrawn | None. |
| UL 244A | Solid-State Controls for Appliances | Withdrawn | None. |