Pentachlorophenol, 100 µg/ml, Acetonitrile, 1ml

1,2,3,4-Tetrabromodibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

2,4-TDI Derivative, 1000 µg/mL in DMSO, 1ml

EPA 1620 Standard 3