EPA Method 502/524 Surrogate Standard #1 Back Catalog number: 30070 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended CBS Native Chlorobenzene Solution/Mixture, 1.2ml, isooctane Price on request 673560 alpha-Endosulfan, 100 µg/ml, Ethyl acetate, 5ml Price on request 79076 EPA Method 8330 Analyte Price on request