EPA Method 500 Series Internal Std #4

Cyhexatin, 100µg/ml in Acetonitrile, 5ml

N-Phenyl-2-naphthylamine,100 µg/mL,acetonitrile,1mL,

1,2,3,6,7-Pentachloronaphthalene, 1.2mL x 50ug/mL, nonane