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i: ■'■ <br />?t> <br />V' $K. <br />*r- <br />;v;^- <br />•*t'. <br />%h:m <br />WP"' *" <br />I <br />. ■. - <br />-■if:- <br />'i'''i -^: <br />;fe <br />R. <br />■;v : <br />i' '-» . <br />W'r <br />::>■ iS- . <br />••^k‘ <br />:4‘> <br />'V^. <br />#'•i*'m^,3^- <br />U: <br />^■ <br />Sfe:fa <br />Kr <br />it- <br />'ifH’Vr.’- <br />:^"f.-v <br />te <br />I•i.. <br />■.R- <br />I'*rI <br />S-'::^‘ <br />1^'"' <br />fe'^'i- <br />iil^ <br />05/13 ;i (ar/rsoa j cMa/ao a?1334 <br />1 <br />2 <br />3 <br />4 <br />5 <br />6 <br />7 <br />a <br />9 <br />10 <br />11 <br />12 <br />13 <br />(4) Underwriters Laboratories of Canada <br />CAJJ4-S6O3-M05, Standard Cor Steel Underground Tanics for <br />Flaraaable and Combustible Liquids; <br />' t i Underwriters Laboratories of Canada <br />CAN4-S631-H84, Standard for Isolating Bushings for Steel <br />Underground Tanks Protected with Coatings and Galvanic Systems; <br />(6) National Association of Corrosion Engineers <br />RP>02-8S, Control of External Corrosion on Metallic Buried. <br />Partially Buried, or Submerged Liquid Storage Systems; or <br />(7) Underwriters Laboratories UL 58, Steel <br />Underground Tanks for riammable and Combustible Liquids. <br />C. The following codes of practice apply to subpart <br />2. item C: <br />14 <br />15 <br />16 <br />17 <br />^10 <br />19 <br />20 <br />21 <br />22 <br />23 <br />24 <br />25 <br />26 <br />27 <br />28 <br />29 <br />30 <br />31 <br />32 <br />33 <br />34 <br />35 <br />36 <br />tl) Underwriters Laboratories UL 1746, Corrosion <br />Protection Systems Cor Underground Storage Tanks; <br />(2) Association of Composite Tanks ACT-100. <br />Specification for the Fabrication of FRP Clad Underground <br />Storage Tanks: or <br />(3) Steel Tank Institute STI F894-89, <br />Specification Cor External Corrosion Protection of FRP Composite <br />Steel Underground Storage Tanks. <br />Subp. 4. Piping. The piping that routincl/ contains <br />regulated substances and is in contact with the ground must be <br />properly designed, constructed, and protected from corrosion <br />using one of the methods spe<. ified in items A to 0. The <br />corrosion protection methods in items A to C must be in <br /># <br />accordance with one of the codes of practice in subpart 5 <br />developed by a nationally recognized association or independent <br />testing laboratory: <br />A. The piping is constructed of fiberglass-reinforced <br />plastic. <br />B. The piping is constructed of steel and <br />cathodically protected in the following aanaort <br />(1) the piping is coated with a suitable <br />dielectric material; <br />(2) field'-installed cat.hodic protection systems <br />Approved <br />Oy PtTtfor <br />d