1,2,4,8-Tetrachlorodibenzofuran, 1.2ml x 50ug/ml, nonane Back Catalog number: DF-1248-S Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 92559 EPA Method 624 Internal / Surrogate Standard Price on request SC-264042 Perfluorododecane, 1g Price on request 90506 Benzo(e)pyrene,2000µg/ml in methylene chloride,1ml Price on request