EPA Method 508 Surrogate Standard Back Catalog number: 19042 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11206.12-50-ME 1H,1H,2H,2H-Perfluoro-n-octyl methacrylate,50 µg/mL,MeOH,1mL, Price on request 71394 2-Amino-4,6-dinitrotoluene Price on request MA9064 80.000 µS/cm conductivity solution (230mL) Price on request