EPA Method 552,552.1,552.2 Internal Std

9-n-Propylfluorene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 4037-45-0

4-Aminobiphenyl, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 92-67-1

2-Methylphenanthrene