o-Xylene, 100µg/mL in MeOH, 1ml

2,7-Dichlorodibenzo-p-dioxin,50 µg/mL,n-nonane,1mL,

Arochlor 1242 , 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-10, Cas.no. 53469-21-9

EPA Method 624 Standard