Ordinance No. 19593 - Laserfiche WebLink

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stored as specified for the storage of the hazardous material in Division III. 6. Under round Tanks. Underground tanks containing hazardous materials shall be located and protected in accord- ance with Section 79.601 and 19.603 of this code. Secondary containment shall be as provided for all new underground tanks, 7. Above round Tanks. Aboveground tanks containing hazardous materials shall be located and protected in accord- ance with the provisions far exterior storage of the particu- lar materials as specified in Division III. Such tanks shall be marked as required by Section 80.401~n}, ~c} Pi in , Valves and Fittin s. 1. General. Piping including tubing}, valves and fit- tings conveying hazardous materials shall be installed in accordance with approved standards and shall comply with the provisions of this subsection, 2. Desi n and Construction. Piping, valves, fittings and related components used far hazardous materials shall comply with the following: A. Piping, valves, fittings and related components shall be designed and fabricated from materials compat- ible with the material to be contained and shall be of adequate strength and durability to withstand the pres- sure, structural and seismic stress and exposure to which they may be subjected. B. Piping and tubing shall be identified in accord- ance with nationally recognized standards to indicate the material conveyed. C. Emergency shut-off valves shall be identified and the location shall be clearly visible and indicated by means of a sign. D. Approved back-flow prevention ar check valve systems shall be provided when the back-flow of hazard- ous materials may create a hazardous condition or cause the unauthorized discharge of hazardous materials. 3. Sup ley P~p~ng. Supply piping and tubing for gases and liquids having a health hazard ranking of 3 or 4 in accord- ance with UFC Standard 79-3 shall also comply with the follow- . ing• A. Piping and tubing utilized for the transmission of highly taxis or toxic material shall have welded or brazed connections throughout unless an exhausted enclo- sure is provided if the material is a gas, ar the piping is provided with a receptor far containment if the mater- ial is a liquid. EXCEPTION: Nonmetallic piping with approved connections. B. Piping and tubing shall not be located within exit corridors, within any portion of an exit required to be enclosed in fire-resistive construction or above areas not classified as Group H Occupancies. EXCEPTION: Such piping and tubing may be in- stalled within the space defined by the walls Ordinance - 61