EPA Method 524.2 Rev 4.1 High Conc VOC Mixes

Levonorgestrel, 100µg/mL in Acetonitrile, 1ml

Benzyl-n-butyl phthalate-d4, 100µg/ml in IO, 1ml

Isazofos, 10.0 µg/ml, Ethyl acetate, 10ml