EPA Method 524 & 624 - Internal Standard

Arochlor 1221 , 10µg/mL, Solvent-isooctane, Unit 1mL, # of units-10, Cas.no. 11104-28-2

Vitamin A-d5 acetate,100 µg/mL,MeOH,1mL

Terbumeton, 10.0 µg/ml, Methanol, 10ml