EPA Method 551.1 Performance Check Soln Back Catalog number: 30114 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended FHUEA 2H-Perfluoro-2-octenoic acid (6:2), 1.2ml x 50ug/ml, isopropanol Price on request 3309.19-100-CY Allethrin Price on request X9224 Benzo(a)pyrene Price on request