EPA Method 630/630.1 Stock Solution #2 Back Catalog number: 40025 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DF-12346789-S Octachlorodibenzofuran, 1.2ml x 50ug/ml, toluene Price on request 19041 Pentachloronitrobenzene Price on request 71476A 4-Chlorothioanisole Price on request