EPA Method 502/524 Fortification Solution

2,4-Dimethylphenol, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 105-67-9

Oxadixyl, 100 µg/ml, Acetonitrile, 5ml

Siloxanes - Mix 7, 10µg/ml in Acetone, 5ml