EPA Method 8260B Surrogate Standard Back Catalog number: 23112 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 96499 Oxymorphone-D3 Price on request 56424 Chromium (Cr), 1µg/ml in 2%-HNO3/Water, 4 x 25ml Price on request 3749.6-250MG 1,3,5-Trichlorobenzene,neat,neat,250mg, Price on request