EPA Method 8260B Mix #4

2-Bromodiphenyl ether, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 7025-06-1

beta-HCH, 10.0 µg/ml, Ethyl acetate, 10ml

Fipronil-sulfone, 100 µg/ml, Acetonitrile, 5ml