Cerotic acid, 100 µg/ml, Acetonitrile, 1ml

EPA Method 525 - Internal Standard

2,6-Dibromonaphthalene, 50µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 13720-06-4

2,2',3,4,4',5,6'-Heptachlorobiphenyl ,100 µg/mL,isooctane,1mL,