ADOPTS WITH AMENDMENTS:

International Fire Code 2015 (IFC 2015)

Part I — Administrative

Part II — General Safety Provisions

Part III — Building and Equipment Design Features

Part IV — Special Occupancies and Operations

Part V — Hazardous Materials

Part VI — Referenced Standards

Part VII — Appendices

Heads up: There are no amended sections in this chapter.

Chapter 39 Processing and Extraction Facilities

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This section has been amended at the state or city level.

Section 3901 General

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3901.1 Scope

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Plant processing or extraction facilities shall comply with this chapter and the International Building Code®. The extraction process includes the act of extraction of the oils and fats by use of a solvent, desolventizing of the raw material, production of the miscella, distillation of the solvent from the miscella and solvent recovery. The use, storage, transfilling, and handling of hazardous materials in these facilities shall comply with this chapter, other applicable provisions of this code and the International Building Code®.

3901.2 Existing Buildings or Facilities

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This section has been amended at the state or city level.
Existing buildings or facilities used for the processing of plants or where the medium of extraction or solvent is changed shall comply with this chapter.

3901.3 Permits

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This section has been amended at the state or city level.
Permits shall be required as set forth in Sections 105.6 and 105.7.

Section 3902 Definitions

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3902.1 Definitions

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The following terms are defined in Chapter 2:

DESOLVENTIZING.

MISCELLA.

Section 3903 Processing and Extraction

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3903.1 Construction

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Processing shall be located in a building complying with the International Building Code®.

3903.2 Prohibited Occupancies

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Extraction equipment and extraction processes utilizing materials classified as physical hazards in accordance with Section 307 of the International Building Code® and other provisions of this code shall not be located in any building containing a Group A, E, I or R occupancy.

3903.3 Location

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The extraction equipment and extraction processes utilizing materials classified as physical hazards in accordance with Section 307 of the International Building Code® and other provisions of this code as solvents shall be located in a room dedicated to extraction and the room shall not be used for any other purpose. There shall be no storage of solvents in the extraction room.

3903.4 Post-Process Purification and Winterization

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This section has been amended at the state or city level.
Post-processing and winterization involving the heating, cooling or pressurizing of the miscella to other than normal pressure or temperature shall be approved and performed in an appliance listed for such use and shall comply with Sections 3903.4.1 or 3903.4.2. Domestic or commercial cooking appliances and cooling appliances shall not be used.

3903.4.1 Industrial Ovens

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The use of industrial ovens shall comply with Chapter 30.

3903.4.2 Refrigerators, Freezers and Other Cooling Equipment

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This section has been amended at the state or city level.
Refrigerators, freezers and other cooling equipment used to store or cool flammable liquids shall be listed for the storage of flammable and/or combustible liquids or shall be listed for Class I, Division I locations in accordance with NFPA 70®.

3903.4.3 Post-Processing

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This section has been amended at the state or city level.
Post-processing operations, including dispensing of flammable liquids between containers, shall be performed within a hazardous exhaust fume hood rated for exhausting flammable vapors and listed in accordance with UL 1805. Electrical equipment used within the hazardous exhaust fume hood shall be rated for use in flammable atmospheres. Exception: A hazardous exhaust fume hood is not required where an approved exhaust system is installed in accordance with NFPA 91®.

3903.5 Use of Flammable and Combustible Liquids

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This section has been amended at the state or city level.
The use of flammable and combustible liquids for liquid extraction processes, including dispensing of flammable liquids between containers, where the liquid is boiled, distilled, or evaporated shall be located within a hazardous exhaust fume hood, rated for exhausting flammable vapors and listed in accordance with UL 1805. Electrical equipment used within the hazardous exhaust fume hood shall be rated for use in flammable atmospheres. Heating of flammable or combustible liquids over an open flame is prohibited. Exceptions:
  1. The use of a heating element not rated for flammable atmospheres, where documentation from the manufacturer, or approved testing laboratory indicates the element is rated for heating of flammable liquids.
  2. Unheated processes at atmospheric pressure using less than 16 oz. (473 ml) of flammable liquids are not required to be located within a hazardous exhaust fume hood.
  3. A hazardous exhaust fume hood is not required where an approved exhaust system is installed in accordance with NFPA 91®. Electrical equipment used within this room shall be rated for use in flammable atmosphere.

3903.6 Liquefied Petroleum Gas

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This section has been amended at the state or city level.
Plant processing and extraction utilizing liquefied petroleum gas shall comply with Section 3903.6.1 through 3903.6.4 and other applicable provisions of this code.

3903.6.1 Release of Gas

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Liquefied petroleum gases shall not be released to the atmosphere except where released in accordance with Section 7.3 of NFPA 58®.

3903.6.2 Exhaust

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This section has been amended at the state or city level.
Plant processing and extraction utilizing liquefied petroleum gas, including processes for off-gassing spent plant material and oil retrieval, shall be located under a chemical fume hood, listed in accordance with UL 1805. Exception: A chemical fume hood is not required where an approved exhaust system is installed in accordance with NFPA 91®.

3903.6.3 Electrical

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This section has been amended at the state or city level.
The extraction room where liquefied petroleum gas is used as a solvent shall be classified as Class I, Division I hazardous location in accordance with NFPA 70®. All conductive equipment and conductive objects within the extraction room shall be bonded and grounded with a resistance of less than 1.0 times 10 to the sixth power ohms in accordance with NFPA 70®.

3903.6.4 Automatic Fire-Extinguishing System

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This section has been amended at the state or city level.
Chemical fume hoods and enclosures, including ductwork required by Section 3903.6.2 shall be provided with an automatic fire-extinguishing system complying with Section 903.3.1.1, 904.6, 904.8 or 904.10.

3903.7 Carbon Dioxide Extraction

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This section has been amended at the state or city level.
Plant processing and extraction facilities utilizing carbon dioxide solvents shall comply with Sections 3903.7.1 through 3903.7.3, Section 5307 and other applicable provisions of this code.

3903.7.1 Storage and Handling

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All carbon dioxide compressed gas cylinders shall be secured to a fixed object to prevent falling.

3903.7.2 Gas Detection System

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A gas detection system complying with Sections 916 and 5307.4.3 shall be provided in a room where carbon dioxide solvents are used in the extraction process.

3903.7.3 Carbon Dioxide Discharge

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The carbon dioxide extraction equipment pressure relief device and blow-off valves shall be piped to the exterior of the building.

Section 3904 Systems and Equipment

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3904.1 General Requirements

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This section has been amended at the state or city level.
Systems and equipment used with the processing and extraction of oils and products from plants shall comply with Sections 3904.2 through 3904.4 and 5003.2, and other applicable provisions of this code, the International Building Code®, and International Mechanical Code®.

3904.2 Systems and Equipment

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This section has been amended at the state or city level.
Systems or equipment used for the extraction of oils from plant material shall be listed or approved for the specific use. If the system used for extraction of oils and products from plant material is not listed, the system shall be reviewed by a registered design professional. The registered design professional shall review and consider any information provided by the system's designer or manufacturer. For systems and equipment not listed for the specific use, a technical report in accordance with Section 3904.3 shall be prepared and submitted to the fire code official for review and approval. The firm or individual preparing the technical report shall be approved by the fire code official prior to performing the analysis.

3904.3 Technical Report

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This section has been amended at the state or city level.
A technical report, reviewed and approved by the fire code official as required by Section 3904.2, is required prior to the equipment being located or installed at the facility. The report shall be prepared by a registered design professional or other professional approved by the fire code official.

3904.3.1 Report Content

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The technical report shall contain all of the following:
  1. Manufacturer information.
  2. Preparer of record of the technical report.
  3. Date of review and report revision history.
  4. Signature page, including all of the following:
    1. Author of the report.
    2. Date of the report.
    3. Date and signature of registered design professional of record performing the design or peer review.
  5. Model number of the item evaluated. If the equipment is provided with a serial number the serial number shall be included for verification at the time of site inspection.
  6. Methodology of the design or peer review process used to determine minimum safety requirement. Methodology shall consider the basis of design, and shall include a code analysis and code path to demonstrate whether specific codes or standards are applicable.
  7. Equipment description. A list of every component and subassembly, such as fittings, hose, quick disconnects, gauges, site glass, gaskets, valves, pumps, vessels, containers and switches, of the system or equipment, indicating the manufacturer, model number, material and solvent compatibility. Manufacturer's data sheets shall be provided.
  8. A general flow schematic or general process flow diagram of the process. Post-processing or winterization shall be included in this diagram. Primary components of the process equipment shall be identified and match the equipment list required in Item 7. Operating temperatures, pressures and solvent state of matter shall be identified in each primary step or component. A piping and instrumentation diagram (PID or P&ID) shall be provided.
  9. Analysis of the vessel(s) if pressurized beyond standard atmospheric pressure. Analysis shall include purchased and fabricated components.
  10. Structural analysis for the frame system supporting the equipment.
  11. Process safety analysis of the extraction system, from the introduction of raw product to the end of the extraction process.
  12. Comprehensive process hazard analysis considering failure modes and points of failure throughout the process. The process hazard analysis shall include a review of emergency procedure information provided by the manufacturer of equipment or process and not that of the facility, building or room.
  13. Review of the assembly instructions, operational and maintenance manuals provided by the manufacturer.
  14. List of references used in the analysis.

3904.4 Site Inspection

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This section has been amended at the state or city level.
Prior to the operation of the extraction equipment, where required by the fire code official, the engineer of record or approved professional, as approved in 3904.2, shall inspect the site of the extraction process once equipment has been installed for compliance with the technical report and the building analysis. The engineer of record or approved professional shall provide a report of the findings and observations of the site inspection to the fire code official prior to the approval of the extraction process. The field inspection report authored by the engineer of record shall include the serial number of the equipment used in the process and shall confirm that the equipment installed is the same model and type of equipment identified in the technical report.

Section 3905 Safety Systems

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This section has been amended at the state or city level.

3905.1 Gas Detection

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This section has been amended at the state or city level.
For extraction processes utilizing flammable gases as solvents, a continuous gas detection system shall be provided. The gas detection threshold shall be not greater than 25 percent of the lower explosive limit/lower flammability limit (LEL/LFL) of the materials.

3905.1.1 System Design

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The flammable gas detection system shall be listed or approved and shall be calibrated to the types of fuels or gases used for the extraction process. The gas detection system shall be designed to activate when the level of flammable gases exceeds 25 percent of the LFL.

3905.1.2 Gas Detection System Components

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This section has been amended at the state or city level.
Gas detection system control units shall be listed and labeled in accordance with UL 864 or UL 2017. Gas detectors shall be listed and labeled in accordance with UL 2075 for use with the gases and vapors being detected.

3905.1.3 Operation

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Activation of the gas detection system shall result in all of the following:
  1. Initiation of distinct audible and visual alarm signals in the extraction room.
  2. Deactivation of all heating systems located in the extraction room.
  3. Activation of the mechanical ventilation system, where the system is interlocked with gas detection.

3905.1.4 Failure of the Gas Detection System

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Failure of the gas detection system shall result in the deactivation of the heating system; activation of the mechanical ventilation system where the system is interlocked with the gas detection system; and initiation of a trouble signal to sound in an approved location.

3905.1.5 Interlocks

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Electrical components within the extraction room shall be interlocked with the gas detection system. Activation of the gas detection system shall disable all light switches and electrical outlets.

3905.2 Emergency Shutoff

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Extraction processes utilizing gaseous hydrocarbon-based solvents shall be provided with emergency shutoff systems in accordance with Section 5803.1.3.

3905.3 Emergency Power System

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This section has been amended at the state or city level.
For extraction processes utilizing hydrocarbon gases or liquids as solvents, the extraction room lighting and extraction room ventilation system shall be provided with emergency power in accordance with Section 2702 of the International Building Code®.
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