1000 µg/mL of each analyte in Methylene chloride (Dichloromethane)Benzo(j)fluoranthene Dibenzo(a,e)pyrene Dibenzo(a,h)acridine Dibenzo(a,h)pyrene Dibenzo(a,j)acridine Dibenzo(a,i)pyrene7H-Dibenzo(c,g) carbazole 3-Methylcholanthrene