EPA Method 603/8030A - Analytes Back Catalog number: 19099 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 50184 Ammonium (NH4+) Price on request 4M163 2,3,3',4',5,6-Hexachloro-4-methoxybiphenyl, 1.2ml x 50ug/ml, nonane Price on request EPA-1613CSS Cleanup Standard Spiking Solution, 1.2ml, nonane Price on request