EPA Method 502.2 Internal Standard Back Catalog number: 91703 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11399.12-50-IO 2,3,3',4,4',5',6-Heptabromodiphenyl ether,50 µg/mL,isooctane,1mL, Price on request 681514 Cycloxydim Metabolite BH 517-TGSO2, 100 µg/ml, Ac Price on request 99810 Pesticide Mix (Acetochlor, Metazachlor, Alachlor, Terbuthylazine, Terbuthylazine-desethyl), 10µg/ml in Hex/1% AC, 1ml Price on request