EPA Method 551.1 Surrogate Standard Back Catalog number: 30102 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 70163 Diphenamid Price on request 97344 2,4-Dimethylaniline Price on request XA13290000AL Ethofumesate, 100µg/mL in Acetonitrile, 1ml Price on request