EPA Method 551 Analytes Back Catalog number: 32052 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10979.11-50AN N-(2-Hydroxyethyl)-N-methylperfluorooctane sulfonamide,50 µg/mL,acetonitrile,1mL, Price on request 91009 (Use Part# 70387) Famphur Price on request 9758.20-K-IO Iso-pentyl benzyl phthalate (3-Methylbutyl benzyl phthalate), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 72170-46-8 Price on request