EPA Method 552 Internal Standard

Extended Calibration/Low Level Solution ((CS1)/2) , 500ul, nonane

PCN Major Incineration Congeners Solution/Mixture, 1.2ml, nonane

2,2',3,4,4',5,5'-Heptachlorobiphenyl, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 35065-29-3