ASTM D-4815 Calibration Mix #2 Back Catalog number: 51065 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DF-1234678-S 1,2,3,4,6,7,8-Heptachlorodibenzofuran , 1.2ml x 50ug/ml, nonane Price on request 66098 2,2',3',4,6-Pentachlorobiphenyl (98) Price on request 31481 1,2,3-Trichloropropane Price on request