EPA Method 551.1 Surrogate Standard Back Catalog number: 30102 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678444 Napropamide, 100 µg/ml, Acetonitrile, 5ml Price on request 673868 Cyproconazole, 100mg Price on request 8668.16-100-AN Imazamethabenz-methyl Price on request