EPA Method 507 Analyte Mix #1 Back Catalog number: 30182 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended PFPEA Perfluoro-n-pentanoic acid, 50µg/ml in MeOH, 1,2ml Price on request 93606 Benzene & 1,2-Dichloroethane Price on request 95974 Chlorobenzenes Mix Price on request