EPA method 8270C calibration std kit

2,4-Dimethyl-6-isooctylphenol, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 198220-45-0

Phorate-oxon, 100 µg/ml, Toluene, 1ml

Ametryn, 100μg/mL in Acetonitrile, 1ml