EPA Method 8240A/1666 - Purgeable Internal Std

Betulin, 600µg/mL, Solvent-diisopropyl ether, Unit 1mL, # of units-10, Cas.no. 473-98-3

1,3-Diphenylbenzo[c]thiophene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 16587-39-6

Aldrin