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Red Thread IIA History �, 9, , �� • �, <br /> In 1968, this product was UL Listed as "Nonmetallic <br /> Underground Piping for Petroleum Products Only." Under the ` Ia �. <br /> UL test program, the pipe was totally immersed in the following _• ss f r f <br /> chemicals(all at 100T). <br /> Regular leaded gasoline, T <br /> Premium unleaded gasoline, y � . <br /> • Premium leaded gasoline, , . 1�-,. 't <br /> 7-In, <br /> • No.2 fuel oil, <br /> ;.' .M <br /> • Benzene ' - r;; I a <br /> • Toluene RECEIVE ' ' <br /> • ASTM reference fuel C, <br /> • ASTM reference fuel A, AUG 0.4 i U h " <br /> Distilled water, . <br /> Nitric acid(5%by weight), <br /> NTALEHL . <br /> • Sodium carbonate and sodium bicarb M1115 <br /> • Sodium chloride solution (saturated), MI I f�FRVI�H' TV-t <br /> E' K <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 /> *om*, ethanol and gasoline including 100%ethanol. <br /> ,mini:,.1,,, • __ - <br /> VAl <br /> _ -#1 l <br /> In 1984, the Red Thread II system carried the same UL <br /> listing as in 1968 and NOV Fiber Glass Systems recommended <br /> the piping system for all ethanol and methanol blends up to 100% <br /> at temperatures up to 75T s <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. " _ -, v ,,'��_ :'-�;•;�•�' <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 'L <br /> aw- <br /> Representatives,visit www.fgspipe.com. <br /> Avg_. -,;* :•r <br /> ..`:' <br /> a <br /> Old vs.New-Pipe in the foreground was installed in 1973 and removed <br /> 27 years later when the station closed. <br /> •hr..t. <br /> 3 <br />