EPA Method 418.1 - TPH IR Standard Back Catalog number: 98245 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 676215 Dinoseb, 100 µg/ml, Acetonitrile, 5ml Price on request 71033 2-(2-Butoxyethoxy) ethylacetate Price on request 94591 PAH Standard Price on request