EPA Method 515.1 - Performance Check Solution

Perfluorohexadecanoic acid, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 67905-19-5

n-Eicosane-d42

Pendimethalin-D5, 100 µg/mL in Acetone, 1ml