EPA Method 8091Mix #2 Back Catalog number: 80911 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673786 Diflufenican, 10 µg/ml, Ethyl acetate, 10ml Price on request 56134 Selenium (Se) Price on request 70440 n-Butyl acetate, 1000µg/ml in MeOH, 1ml Price on request