EPA 1620 Standard 4 Back Catalog number: 52142 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended A10018000AL-100 Acetochlor, 100µg/mL in Acetonitrile, 1ml Price on request 684986 3,3'-Dichlorobenzidine, 10.0 µg/ml, Acetonitrile, Price on request 59399A ICP Mix #1 Price on request