EPA Method 1657 Analytes Back Catalog number: 31784 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 73176 Methanesulfonic acid Price on request 4M178 2,2',3,3',5,5',6-Heptachloro-4-methoxybiphenyl, 1.2ml x 48.5ug/ml, nonane Price on request 2822.8-50-ME n-Perfluorooctanoic acid, ammonium salt, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 3825-26-1 Price on request
