2,3,5-Trimethacarb, 10.0 µg/ml, Acetonitrile, 10

1,3-Dimethylnaphthalene

2,2',5,5'-Tetrachlorobenzidine, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 15721-02-5

EPA Method 507 - Performance Check Solution