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TABLE 5.5 TABLE OF INSPECTION SCHEDULES <br /> AST Type and Size(U.S.gallons) Category 1 Category 2 Category 3 <br /> 0- 1100 P P P, E&L(10) <br /> (0-4164 liters) <br /> 1101 -5,000 [P, E&L(5), 1(10)] <br /> (4168-18,927 liters) P P, E&L(10) or <br /> Shop-Fabricated ASTs [P, L(2), E(5)] <br /> 5,001 -30,000 [P, E(10), 1(20)] [P, E&L(5), 1(10)] <br /> (18,931-113,562 liters) P, E(20) or or <br /> [P, E(5), L(10)] [P, L(1), E(5)] <br /> 30,001 -50,000 P, E(20) P, E&L(5), 1(15) P, E&L(5), 1(10) <br /> (113,566-189,271 liters) <br /> Portable Containers P P P** <br /> ** Owner shall either discontinue use of portable container for storage or have the portable container DOT <br /> (Department of Transportatinnl=and recertified per the following schedule(refer to Section 9.0): <br /> Plastic portable container-every 7 years <br /> Steel portable container-every 12 years <br /> Stainless Steel portable container-every 17 years <br /> 9.0 LEAK TESTING METHODS(LTM) <br /> 9.1 SHOP-FABRICATED AST LEAK TESTING PROCEDURE. <br /> 9.1.1 Consult the Steel Tank Institute Recommended Practice R912, Installation Instructions for Shop <br /> Fabricated Stationary Aboveground Storage Tanks for Flammable, Combustible Liquids. Air shall <br /> not be used for a pressure test and an inert gas shall be used instead. The introduction of a gas <br /> containing oxygen (such as air) to a tank that has previously held petroleum liquid can pose an <br /> explosion hazard. <br /> 9.1.2 Vacuum testing of the interstice of double-wall or double-bottom tanks is an option. Refer to the <br /> Steel Tank Institute Recommended Practice R912, Installation Instructions for Shop Fabricated <br /> Stationary Aboveground Storage Tanks for Flammable, Combustible Liquids. <br /> 9.2 PORTABLE CONTAINERS LEAK TESTING PROCEDURE. Refer to DOT Sections 49 CFR 173.28 (Reuse, <br /> reconditioning and remanufacturing of packagings - mainly for drums) and Part 178 - 49 CFR <br /> Subpart O - Testing of IBC's (section 178.803 Testing and certification of IBC's) and 49 CFR <br /> 180.605, or equivalent,for portable container testing and recertification. <br /> 9.2.1 See the definition of Leak Testing Methods for more information. <br />