EPA Method 642 - Analytes Back Catalog number: 40057 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 59941 Hexavalent Chromium (Cr 6+) Price on request 674602 Clodinafop free acid, 10.0 µg/ml, Acetonitrile, Price on request 94852 ASTM D-5580 Daily Check Price on request