EPA Method 548.1 Analyte Back Catalog number: 30277 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 679886 3,3'-Dichlorobenzidine, 100 µg/ml, Acetonitrile, Price on request XA14200000AL Hexazinone, 100µg/mL in Acetonitrile, 1ml Price on request 10296.12-100-IO 3-Chlorobiphenyl Price on request