EPA Method 524 & 624 - Internal Standard

1-Bromo-4-chlorobenzene, 1000mg

2-n-Propyldibenzothiophene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 147792-30-1

D5-Pyrimethanil, 100µg/ml in Acetonitrile, 1ml