Cations Std. Level 4

Arochlor 1242 , 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-5, Cas.no. 53469-21-9

n-Heptadecane

4-Methoxy-2,2',5'-trichlorobiphenyl, 100µg/ml in IO, 1ml