EPA Method 624 Internal / Surrogate Standard

Perylene-d12, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 1520-96-3

1,4-Difluorobenzene

1,8-Naphthalic anhydride, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 81-84-5