EPA Method 507/525 Analytes Mix #2 Rev.1

4,4'-DDD (=TDE), 100µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 72-54-8

Pyrazophos, 10.0 µg/ml, Acetonitrile, 10ml

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