EPA Method 8032 Internal Standard

2,2',3,3',4,4',5',6-Octachlorobiphenyl, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 42740-50-1

1H,1H-Perfluorooctadecan-1-ol , 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 242142-82-1

2,4-Dihydroxybenzophenone-13C6, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 131-56-6 (unlabelled)