EPA Method 551.1 Surrogate Standard Back Catalog number: 31102 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8616.11-K-ME 3-Chloropropane-1,2-di(heptafluoro)butyrate, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. Price on request 680667 Sibutramine hydrochloride monohydrate, 50mg Price on request 93223 4,4’-Butylidenebis(6-tert-butyl-m-cresol) Price on request