EPA Method 550 Analytes

2,4-Dichloro-1-naphthol, 50µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 2050-76-2

Dichlormid, 100µ/ml in Acetonitrile, 1ml

4-Acetylbenzoic acid, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 586-89-0