EPA Method 608Mix #4 Back Catalog number: 41004 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2009.12-100-IO 2,3,4,4',5-Pentachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 74472-37-0 Price on request 675342 Malaoxon, 10.0 µg/ml, Cyclohexane, 10ml Price on request 675757 Disulfoton-sulfoxide, 100 µg/ml, Acetonitrile, 5 Price on request