GSES Standard 2006 Sub 2

1,2,4,6,7,9-Hexachloro(13C12)dibenzo-p-dioxin, 1.2mL x 50ug/mL, toluene

Esfenvalerate, 10.0 µg/ml, Ethyl acetate, 10ml

4-Amino-2´,3-dimethylazobenzene, certified, 0.25g