EPA Method 555 Herbicide Standard Back Catalog number: 83600 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 66002 PCB No. 2, 100µg/ml in Isooctane, 1ml Price on request DF-2378-S 2,3,7,8-Tetrachlorodibenzofuran , 1.2ml x 50ug/ml, nonane Price on request DF-1234789-S 1,2,3,4,7,8,9-Heptachlorodibenzofuran, 1.2ml x 50ug/ml, nonane Price on request