EPA Method 502/524 Volatile Standard, 2000µg/ml in MeOH, 1ml

PCB Co-Eluter Isomer Mix

Dimethyl phthalate-3,4,5,6-d4, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-5, Cas.no. 93951-89-4

2,2',3,4,5,5'-Hexachloro[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane