EPA Method 509 Internal Standard

Acenaphthylene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 208-96-8

1,5-Bis-(1-methylethyl)-biguanide HCl, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 45095-69-0

Iodofenphos, 10.0 µg/ml, Ethyl acetate, 10ml