Ordinance No. 19593 - Laserfiche WebLink

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the provisions of Section 80.301~q~ when an explosive environment can occur because of the hazardous materials dispensed or used, or as a result of the dispensing or use process. EXCEPTION: When process vessels are designed to fully captain the worst case of explosion antici- pated within the vessel under process conditions considering the mast likely failure. E. Sill control, drains a and containment. Rooms or areas where hazardous material liquids are used in individual tanks or containers exceeding 55 gallons shall be provided with a means to control spills. Secondary containment shall be provided in accordance with the pro- visions of 5ecti0n 80.3011} if the aggregate of multiple tanks or containers exceeds 1,000 gallons. F. S ecial Re uirements for Hi h] Toxic Com ressed Gases. i, ventilated Area. Compressed gas cylinders in use shall be within ventilated gas cabinets, lab- oratory fume hoods, exhausted enclosures or separate gas storage rooms. When portable ar stationary tanks are employed in use or dispensing, they shall be within a ventilated separate gas storage room or placed within an exhausted enclosure. Exhaust systems for gas cabinets, fume hoods, exhausted enclosures or separate gas storage rooms shall be designed to handle the accidental release of gas. Such exhaust systems shall be capable of d~lut~ng, adsorbing, absorbing, neutralizing, burning or otherwise processing the entire contents Of the largest single tank or cylinder of gas in use. Sys- tems far such processing shall be designed as a treatment system. Exhaust vents or stacks shall be located in such a manner as to prevent re-entry of hazardous gases into the building, or their entry into any adjacent building. i i . Gas Cabinets or Exhausted Enclosures . When gas cabinets or exhausted enclosures are provided, they shall be in accordance with the provisions of Section 80.303~a}6.B. Gas cabinets and exhausted enclosures sha11 be internally sprinklered. iii. Se orate Gas Stora a Roams. When separate gas storage rooms are provided, they shall be in accordance with the provisions of Section 80.3o3~a~ 6.C. iv. Treatment Systems. When treatment systems are provided, they shall be in accordance with the provisions Of Section 80.303~a~6.D. v. Gas Detection. Gas detection shall be pro- vi ded i n accordance with the provisions of 5ecti on 80.303~a~9. Activation of the monitoring system shall automatically close the valves on all highly toxic gas supply lines. Ordinance - GS