EPA Method 515.1 Internal Standard Back Catalog number: 30023 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 676942 Fenoxaprop, 100mg Price on request BCZ-136 1,3,6-Tribromo-9H-carbazole, 1.2ml x 50ug/ml, nonane Price on request 684084 Chloroacetic Acid, 100 µg/ml, Acetonitrile, 1ml Price on request