EPA Method 624 Internal / Surrogate Standard Back Catalog number: 92559 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DD-124-S 1,2,4-Trichlorodibenzo-p-dioxin, 1.2ml x 50ug/ml, nonane Price on request 677895 Mevinphos, 10.0 µg/ml, Ethyl acetate, 10ml Price on request 10580.39-100-IO 1-Palmitoyl-2-oleoyl-sn-glycero-3-phosphoethanol sodium salt Price on request