EPA Method 624 Surrogate Standard Back Catalog number: 19112 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10628.12-50-NN 1,2,3,7,8,9-Hexachlorodibenzo-p-dioxin ,50 µg/mL,n-nonane,1mL, Price on request 675575 Fenamidone, 100 µg/ml, Ethyl acetate, 5ml Price on request 90471 Pentachloroethane Price on request