EPA Method 8240A Mix #3 Back Catalog number: 82423 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11208.16-50-ME 1H,1H,2H,2H-Perfluoro-n-dodecyl methacrylate,50 µg/mL,MeOH,1mL, Price on request 673887 Fenthion-sulfoxide, 50mg Price on request 92810 Gas Surrogate Price on request