EPA Method 353.2 Nitrate & Nitrite Back Catalog number: 52120 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11292.18-100-AN Triphenyltin hydroxide,100 µg/mL,acetonitrile,1mL, Price on request 54152 Organic Nutrients Price on request 70277 1,1,1,2-Tetrachloroethane Price on request