EPA Method 552.1 - Surrogate Standard

2,2',4,6,6'-Pentachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 56558-16-8

Demeton-S-methyl, 100 µg/ml, Ethyl acetate, 5ml

o-Toluidine, 1ml