Ordinance No. 19593 - Laserfiche WebLink

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gym} ventilation. Unless exempted or otherwise provided for in Sections 80.302 through 80.315, indoor storage areas and storage buildings sha11 be provided with mechanical exhaust ventilation. Exhaust ventilation systems shall comply with the following: EXCEPTION: Detached storage buildings where natural ventilation can be shown to be acceptable far the mater- ials stored. 1. Installation sha11 be in accordance with the provi- sions of the Mechanical Code. 2. Mechanical ventilation shall be at a rate of not less than one cubic foot per minute per square foot of floor area over the storage area. 3. Systems shall operate continuously. Alternate designs may be approved by the chief. 4. A manual shut-off control shall be provided outside the room adjacent to the access door into the roam or in a location approved by the chief. The switch sha11 be of the break-glass type and shall be labeled "ventilation System Emergency Shut-Off". 5. Exhaust ventilation shall be arranged to consider the density of the potential fumes or vapors released. Far fumes or vapors that are heavier than air, exhaust shall be taken from a point within 12 inches of the fluor. 6. The location of both the exhaust and inlet air open- ings shall be arranged to provide air movement across all portions of the floor ar room to prevent the accumulation of vapors. 1. Exhaust ventilation shal 1 not be recirculated wi thi n the room or building if the materials stared are capable of emitting hazardous vapors. Exhaust vents ar stacks shall be located in such a manner as to prevent re-entry of hazardous dust, vapors yr gases into the building, ar their entry into any adjacent buildings. fin} Se oration from Incom atible Hazardous Materials. Stor- age in excess of the exempt amounts specified in Sections 80.302 through 80.315 shall either be: 1. Segregated from incompatible hazardous materials storage by a distance of not less than 20 feet; or 2. Isolated from incompatible hazardous materials storage by a noncombustible partition extending not less than 18 inches above and to the sides of the stored material; or 3. Stored in hazardous materials storage cabinets ar gas cabinets. Materials which are incompatible shall not be stored within the same cabinet. ~o} Hazardous Materials Stora a Cabinets. 1. General. When storage cabinets are used to comply with the provisions of this article, such cabinets shall be in accordance with this subsection. EXCEPTIDN: Compressed gases shall be stored in cabi- nets designed in accordance with Section 80.303. Cabinets shall be conspicuously labeled in red letters on contrasting background "HAZARDOUS - KEEP FIRE AWAY". Ordinance - Z9