EPA Method 507/525 Analytes Mix #2 Rev.1 Back Catalog number: 31083 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678511 Tetramethrin, 100 µg/ml, Acetonitrile, 1ml Price on request 71838 2,2’-Dinitrobiphenyl Price on request 83507 Dichlorprop methyl ester Price on request