EPA Method 548.1 Analyte Back Catalog number: 30277 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681526 Sulcotrione, 100 µg/ml, Acetonitrile, 5ml Price on request PN-73S 1,2,3,4,5,6,7-Heptachloronaphthalene, 1.2ml x 50ug/ml, nonane Price on request 676632 Chlorotoluron-desmethyl, 100mg Price on request