EPA Method 525 - PCB Standard

1,2-Dihydroxynaphthalene, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 574-00-5

Permethrin (mixed isomers)

Isoproturon D6 (dimethyl D6), 1000µg/mL in Acetonitrile, 1ml