EPA Method 622/8140 - Analytes Back Catalog number: 93126 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 53080 Instrument Standard 4 Price on request 33411 n-Undecane Price on request PF4OPEA Perfluoro-4-oxapentanoic acid (PFMPA), 50µg/ml in MeOH, 1,2ml Price on request