EPA Method 524 & 624 - Internal Standard

n-Heptane, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 142-82-5

2,3,4'-Trichlorobiphenyl, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 38444-86-9

cis-(13C10)Chlordane (a), 1.2mL x 100ug/mL, nonane