EPA Method 608 Pesticides Back Catalog number: 81801 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 15900-2834-100AN5 2-Imidazolidinethione (ETU)", 100μg/mL in Acetonitrile, 5ml Price on request EPA-513CVS EPA Method 513 Calibration Kit, 6 x 500ul, nonane Price on request 57911 Sodium (Na) Price on request