D10-Chlorpyrifos, 100 µg/ml, Acetonitrile, 5ml

4-Chlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 2051-62-9

p-Isopropyl toluene

EPA Method 8240A - Purgeable Surrogate Standard