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Reference 63 Fed. Reg. 59 (March 27, 1998) and 40 C.F.R. 9, 63. The EPA Test Method 319 is a testing protocol in which potassium chloride and oleic acid are substituted for chromate paint. These chemical substances attempt to simulate dry and wet overspray characteristics of the chromate paint. This testing protocol verifies that an air filtration system has met minimum efficiency requirements, under laboratory conditions, utilizing potassium chloride and oleic acid. If a spraybooth existed befo