EPA Method 500 Series Internal Standard #5

Polyethyleneglycol mono-4-nonylphenyl ether (n=2)

1,2,7,8-Tetrachlorooctane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 865306-19-0

EPA Method 1633 PFAS Mix, 10µg/mL in MeOH:Water, 1ml