EPA Method 505 Analytes Back Catalog number: 30081 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 50005 1-Chlorooctadecane Price on request M4PFHPA Perfluoro-n-[1,2,3,4-13C4]heptanoic acid, 1.2ml x 50ug/ml, methanol Price on request 53326 Gun Shot Residue Price on request