Dicyclohexyl phthalate-3,4,5,6-d4

2,3,4-Trichloroanisole,100 µg/mL,MeOH,1mL,

1,2,7,8-Tetrabromodibenzofuran, 1.2ml x 50ug/ml, toluene

EPA Method 8141 Surrogate Standard