EPA Method 551.1 Performance Check Soln Back Catalog number: 30114 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3913.28-100-HXX5 Campesterol, 100µg/mL, Solvent-hexane, Unit 1mL, # of units-5, Cas.no. 474-62-4 Price on request N-TAMP-FHXSA N-[3-(perfluoro-1-hexanesulfonamido)propan-1-yl]-N,N,N-trimethylammonium, 1.2ml x 50ug/ml, methanol Price on request 678307 2-Chloro-5-(trifluoromethyl)aniline, 250mg Price on request