EPA Method 525 - Semi-Volatile Mixture

4-Chloro-2-nitrotoluene, certified, 0.25g

2-tert-Butyl-6-methylphenol, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 2219-82-1

Isoproturon, 1000µg/ml in MeOH, 1ml