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---- ------ <br /> Red Thread IIA History <br /> In 1968, this product was UL Listed as "Nonmetallic 2 I <br /> Underground Piping for Petroleum Products Only." Under the <br /> UL test program, the pipe was totally immersed in the following ' <br /> chemicals (all at 1WF). <br /> • Regular leaded gasoline. <br /> • Premium unleaded gasoline, - I <br /> • Premium leaded gasoline. �� �`� <br /> • No.2 fuel oil. <br /> • Senaene � <br /> • Toluene <br /> • ASTM reference fuel C, <br /> • ASTM reference fuel A. r uPo <br /> • Distilled water. <br /> • Nitric acid (5%by weight(. <br /> • Sodium carbonate and sodium bicarbonate solution. " <br /> • Sodium chloride solution(saturated), w � <br /> • Dilute sulfuric acid(pH=3) <br /> • Dilute sulfuric acid(20%by weight). - �_ , • <br /> NOV Fiber Glass Systems recommended this pipe for <br /> methanol!gasoline blends up to 5% methanol at temperatures � <br /> up to 75:F. The pipe was also recommended for all mixtures of <br /> ethanol and gasoline including 100%ethanol. <br /> y <br /> In 1984, the Red Thread 11 system carried the same UL tl <br /> listing as in 1968 and NOV Fiber Glass Systems recommended f <br /> the piping system for all ethanol and methanol blends up to 100°0 <br /> at temperatures up to 75°F. <br /> In 1990,NOV Fiber Glass Systems began manufacturing Red <br /> Thread IIA. This product was UL Listed for petroleum products. " <br /> alcohols (ethanol and methanol) and alcohol gasoline mixtures. ' <br /> In 1995 and 2005, the UL standard changed and each time the <br /> Red Thread IIA piping system passed all new requirements. <br /> For additional product information and location of the NOV - <br /> Fiber Glass Systems Regional Managers and Manufacturer's <br /> _. . _ <br /> Representatives.visit wvrw.fgs.pipe.com. <br /> f� <br /> r .. <br /> ar <br /> i I <br /> Old vs.New-Pipe in the foreground was installed in 1973 and removed <br /> 27 years later when the station closed. <br /> 3 <br />