EPA Method 507 Surrogate Standard Back Catalog number: 19049 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended SC-478737 (E)-2-Octenedioic Acid, 100mg Price on request BB-15 4,4'-Dibromobiphenyl, 1.2ml x 50ug/ml, nonane Price on request 681421 Fluensulfone, 25mg Price on request