ASTM D-4815 Calibration Mix #1 Back Catalog number: 51064 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended MDF-123789 1,2,3,7,8,9-Hexachloro[13C12]dibenzofuran, 1.2ml x 50ug/ml, toluene Price on request 70950 2,3-Dimethylpentane Price on request 95451 PCB Congeners & Hexachlorobenzene Mix #2 Price on request