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16 <br />Full" <br />111>LA <br />,l E31= <br />n n <br />n�n <br />n= <br />• <br />ww 1� .pact«s• «,�.. <br />an8* &120* <br />a <br />Youble-Wall Tar <br />The contractor shall provide U.L <br />Double -Wali Fibergtas° urxlerground <br />storage tanks in sizes and with fittings as <br />shown on the drawings. The tanks shall be <br />manufactured by ing Fiberglas. <br />Tanks shall be tested and Installed with pea <br />gravel or approved alternate backfill <br />material according to the current installation <br />instructions (Owens-Corning Fiberglas <br />Publication 3 -PE and 3 -PE -12681) <br />provided with the tank. <br />Monitoring Capabilities <br />The following continuous monitoring condi- <br />tions are compatible with the cavity between <br />the Inner and outer tank: <br />• Vented to atmosphere <br />•Seated tank cavity <br />Clearance between Inner and outer <br />wall............................'IAff <br />Governing Standards: <br />1. ASTM Specification D4021411. Glass <br />Fiber Reinforced Polyester Underground <br />Petroleum Storage Tanks. <br />2. U.L. 1316. Underwriters Laboratories. <br />Inc., Glass Fiber Reinforced Plastic <br />Underground Storage Tanks for <br />Petroleum Products. <br />3. National Fire Protection Assac. <br />(NFPA30) FWnmableand Combustible <br />Liquids Code and (NFPA31)Standards <br />for installation of Oil Burning Equipment. <br />4. Factory Mutual File J.I.OK6AFA5 <br />5. National Sanitation Foundation Testing <br />Laboratory. January 1984, listing of <br />Plastic Piping System Components and <br />Related Materials, Standard 15. <br />6. Military Specification MIL -T -52777A. <br />dated July 6. 1978. Tanks, Storage, <br />Underground, Glass Fiber Reinforced <br />Plastic. <br />7. General Services Administration, Public <br />Building Service Guide SpocftatiOn. <br />PBS:1568. <br />