EPA Method 8121 Internal Standard Back Catalog number: 81203 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 72452 3-Ketocarbofuran Price on request FOUEA 2H-Perfluoro-2-decenoic acid (8:2), 50µg/ml in Isopropanol, 1,2ml Price on request MPCB-MXG Native Chlorinated Methoxybiphenyl Solution/Mixture, 1.2ml, nonane Price on request