Aroclor 1248 in Transformer Oil

Potassium (K), 1000µg/ml in 2%-HNO3/Water, 100ml

C20 Triaromatic ster-14(15)-ene, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no.

2,2',3,4,4',5',6-Heptachlorobiphenyl (183)