EPA Method 525 Internals & Surrogates Back Catalog number: 91161 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 15100-0160-10CY5 PCB 30, 10µg/ml in Cyclohexane, 5ml Price on request V094750 Valproic Acid, 1g Price on request DD-27-S 2,7-Dichlorodibenzo-p-dioxin, 1.2ml x 50ug/ml, nonane Price on request