EPA Method 353.2 Nitrate & Nitrite Back Catalog number: 52120 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4063-100-5T EPA-PAHs, Cocktail 1, See S-solutions pricelist, Solvent-, Unit , # of units-, Cas.no. Price on request C12637690 Diisopropylnaphthalene (mixture of isomers), certified, 0.1g Price on request 1729.15-K-IO 9-Methoxyphenanthrene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 5085-74-5 Price on request