EPA Method 601Mix #2 Back Catalog number: 44002 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 674960 Profenofos, 10.0 µg/ml, Cyclohexane, 10ml Price on request 2727.6-K-MEX5 Hexachlorobenzene-13C6 Price on request 54214 Ammonia as (NH4+) Price on request