EPA Method 507 - Performance Check Solution

2,2',3,4,4',5-Hexachlorobiphenyl, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 35694-06-5

3-Methoxyphenanthrene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 835-06-3

Monocrotophos,100 µg/mL,acetonitrile,1mL,