EPA 8040A, Mixture A S-4239 9 Analytes, 2mg/mL each in isopropanol 4-Chloro-3-cresol m-Cresol 2,4-Dichlorophenol 2-Methyl-4,6-dinitrophenol 2-Nitrophenol 4-Nitrophenol 2,4,6-Trichlorophenol Pentachlorophenol Phenol