EPA Method 502/524 Surrogate Standard #1 Back Catalog number: 30070 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 14963.12-50-ME Perfluorododecanesulfonic acid, 50µg/ml in MeOH, 1ml Price on request 677264 Mandestrobin, 100 µg/ml, Acetonitrile, 1ml Price on request 72674 Triflumuron Price on request