EPA Method 524.3 - Internal Standard

2,2',4,4',5,5'-Hexachlorobiphenyl, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 35065-27-1

2,2',4,4',5,5'-Hexabromo[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane

Biphenyl