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WHELDEN/RHODES 17805-327-9065 8/96 G928A.N. -213 <br /> A 130 NORTH DRIVE 3601 ALDER STREET <br /> P.O. BOX 939 CONTAINMENT BAKERSFIELD.CA`f3301 <br /> OAKS.PA 19456 INC TEL 805-327-7_-i-; <br /> TEL 610-666-7777 FAX 805327-93zz5 <br /> FAX 610-666-5321 JAMES L. WHELDEN PGR 415-366-5 29 <br /> DISTRICT MANAGER <br /> For California & Nevada <br /> February 8, 1996 <br /> Craig Mortenson <br /> R. H. Lee & Associates <br /> 1137 North McDowell Blvd. <br /> Petaluma, CA 94954-1409 <br /> RE: Compatibility of SP4500 secondary containment piping and various fuels. <br /> Dear Craig, <br /> The following is a description of a portion the test protocol followed by Underwriters' <br /> Laboratories of Canada when they evaluated Enviroflex® secondary piping prior to <br /> their listing it as suitable for secondary containment for flammable liquids": <br /> 5.1 IMMERSION AND AGING TEST OF SECONDARY CONTAINMENT MATERIAL <br /> 5.1.2 The test coupons shall be totally immersed in the following environments for a <br /> period of 180 d: <br /> A Controlled atmosphere at 23°C and 35 to 40% humidity; <br /> B Sodium hydroxide (5% by mass) at 23°C; <br /> 0- Acetic acid (5% by mass) at 23°C; <br /> D. Controlled atmosphere at 70°C; <br /> The following liquids maintained at a temperature of 38°C; <br /> E ASTM reference fuels A and C; <br /> E ASTM Reference oils Nos. 2 and 3; <br /> G Benzene; <br /> H Distilled water; <br /> L Hydrochloride acid (5%); <br /> i Nitric acid (5%); <br /> K Gasoline, premium and regular unleaded; <br /> L Sodium carbonate - Sodium bicarbonate solution (pH10); <br /> M Saturated Sodium Chloride; <br /> N Sulfuric Acid (pH3); <br /> 0 Toluene; <br /> P Ethanol; <br /> Methanol <br /> " ULC Listing Card dated; December 6, 1993 File CMH 1385/CMH 1422 <br /> Sincerely, <br /> James I. Whelden <br /> District Manager, TCI <br /> cc: TCI corporate file <br />