1 Scope

1.1 This Standard covers commercial and industrial plant oil extraction equipment for installation and use indoors in an ordinary (unclassified) locations and hazardous (classified) locations. Hazardous locations are also referred to as explosive atmospheres. Based on the application, installation is in accordance with the manufacturer's installation instructions, together with the following, as applicable:

1. a) CSA C22.1, Canadian Electrical Code, Part 1 (CE Code); ULC-S4400, Premises, Buildings and Equipment Utilized for the Cultivation, Processing and Production of Cannabis; National Fire Code of Canada (NFC); and CSA B149.1, Natural Gas and Propane Installation Code; andIn Canada:

   1. 1) CSA C22.1, Canadian Electrical Code, Part 1 (CE Code);

   2. 2) ULC-S4400, Premises, Buildings and Equipment Utilized for the Cultivation, Processing and Production of Cannabis;

   3. 3) National Fire Code of Canada (NFC);

   4. 4) CSA B149.1, Natural Gas and Propane Installation Code.

2. b) NFPA 70, National Electrical Code (NEC), International Fire Code (IFC), NFPA 1, Fire Code, NFPA 55 Compressed Gases and Cryogenic Fluids Code, and NFPA 58, Liquefied Petroleum Gas Code.In the United States:

   1. 1) NFPA 70, National Electrical Code (NEC);

   2. 2) International Fire Code (IFC);

   3. 3) NFPA 1, Fire Code;

   4. 4) NFPA 55, Compressed Gases and Cryogenic Fluids Code;

   5. 5) NFPA 58, Liquefied Petroleum Gas Code.

NOTE 1: For the purposes of this standard the terms “LP-Gas” and “Propane” are interchangeable.

NOTE 2: The term “Class I” was originally included as a prefix to Zone 0, Zone 1 and Zone 2 locations. Since both the term “Class I” and the terms “Zone 0, Zone 1 and Zone 2” only apply to flammable gases, vapors, or liquids, the “Class I” prefix was redundant and has been deleted in the CE Code and NEC. However, marking of “Class I” is left as an option for Zone 0, Zone 1 and Zone 2 locations within the NEC.

1.2 Plant oil extraction equipment includes:

1. a) Preparatory equipment, for preparing the plant material for extraction of the oil, such as trimming, deseeding, and drying/curing;

2. b) Extractors, for removing the oil from the plant material by the use of butane, ethanol, n-hexane, liquefied petroleum gas (LPG), pentane or propane (flammable solvents) and Carbon Dioxide (CO₂) (non-flammable solvent);

3. c) Extraction booths or pods, for enclosing/protecting plant oil extraction equipment; and

4. d) Post-processing equipment, for finalizing the plant oil extraction process such as vacuum ovens, rotary evaporators, and solvent recovery pumps.

Summary of Topics

This revision of ANSI/CAN/UL/ULC 1389 dated April 20, 2023 includes the following changes in requirements:

– Additional Standard Reference for Storage Cylinders for Transportation; 9.1.– Corrected Standard References for Industrial Control Equipment and Insulation Coordination; 18.1, 18B.1, 18B.2, 18C.1 and 18D.1.– Correcting Explosion-Proof Equipment Standard References for Canada; 19.1.2 and 50.1.2.2.– Revisions to Table 27.1.– Terminology Clarifications and Corrections; 1.1, 19.1.3, 19.2.1, 19.3.1, 19.3.2, 37.1, 38.1, 46.3, 47.5, 49.2.1, 49.2.2, 49.3.1, 49.3.2, 50.1.2.1, 50.1.3.1, 50.4.1, 52.2 and 53.4.– Miscellaneous Editorial Corrections; 48.1, 48.2, 48.4, Section 49 (title only), Section 52 (Advisory Note only) and 54.1.– Update Table A1.1 – Safety Markings Translations.– Update Annex A from Informative to Normative.– Formatting Clause 1.1 for Consistency.