EPA Method 500 Series Internal Standard

3-Methyl-1-naphthol, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 13615-40-2

Fenhexamid, 100 µg/ml, Ethyl acetate, 5ml

1,2,4,7-Tetrachlorodibenzofuran, 1.2ml x 50ug/ml, nonane