EPA Method 624 Internal / Surrogate Standard

Sodium perchlorate monohydrate, 250mg

n-Hexadecane-d34, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-5, Cas.no. 15716-08-2

2,2',3,4,5,5'-Hexachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 52712-04-6