EPA Method 524.3 - Internal Standard Back Catalog number: 95488 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 73158 Dodecanoic acid Price on request L20635000AL Benzo(a)pyrene, 10 ng/µl, 10ml Price on request 681574 D6-Carbofuran-3-keto, 100 µg/ml, Acetonitrile, 1 Price on request