2916 STATE ST BSNW LLC 2019-04-17

3802.5 Carbon dioxide enrichment or extraction. Extraction processes using carbon dioxide shall comply with the section. 3802.5.1 Scope. Carbon dioxide systems with more than 100 pounds of carbon dioxide shall comply with Sections 3802.5 through 3802.5.8. • This section is applicable to carbon dioxide systems utilizing com- pressed gas systems, liquefied-gas system, dry ice, or on-site carbon .dioxide generation. 3802.5.2. Permits. Permits shall be required as set forth in Section 105. 6 and 105.7. 3802.5.3 Equipment. The storage, use, and handling of liquid carbon dioxide shall be in accordance with Chapter 54 and the applicable re- quirements of NFPA 55, Chapter 13. Insulated liquid carbon dioxide system shall have pressure relief devices in accordance with NFPA 55. 3802.5.5 Protection from damage. Carbon dioxide systems shall be in- stalled so the storage tanks, cylinders, piping and fittings are pro- tected from damage by occupants or equipment during normal facility operations. 3802.5.7 Signage. At the entrance to each area using or storing carbon dioxide, signage shall be posted indicating the hazard. Signs shall be durable and permanent in nature and not less than 7 inches wide by 10 inches tall. Signs shall bear the "skull and crossbones" emblem with the warning "DANGER° POTENTIAL OXYGEN DEFICIENT ATMOSPHERE." NFPA 704 signage shall be provided at the building main entry and the rooms where the carbon dioxide is used and stored. 3802.5.8 Ventilata.on. Mechanical ventilation shall be in accordance with the International Mechanical Code and shall comply with all of the following: . 1. Mechanical ventilation in the room or area shall be at a rate of not less than 1 cubic foot per minute per square foot. 2. The exhaust system intake shall be taken from a point within . 12 inches of the floor. 3. The ventilation- system shall be designed to operate at a nega- tive pressure in relation to the surrounding area. 3802.6 Flammablet or combustible liquid. The use of a flammable or com- bustible liquid for the extraction of oils and fats from marijuana shall comply with this section. 3802.6.1 Scope. The use of flammable and combustible liquids for liq- uid extraction process where the liquid is boiled, distilled, or evaporated shall comply with this section and NFPA 30. 3802.6.2 Location. The process using a flammable or combustible liquid shall be located within a hazardous exhaust fume hood, rated for ex- hausting flammable vapors. Electrical equipment used within the haz- ardous exhaust fume hood shall be rated for use in flammable atmos- pheres. Heating of flammable or combustible liquids over an open flame is prohibited. Exception: The use of a heating element not rated for flammable atmospheres may be approved where documentation from the manufacturer or an approved testing laboratory indicates is it rated for heating of flammable liquids. • [ OTS-7182.5