Potassium (K) Back Catalog number: 56019 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678073 Phosmet-oxon, 100 µg/ml, Isooctane, 1ml Price on request 674938 Diazinon, 250mg Price on request DF-2-S 2-Chlorodibenzofuran, 1.2ml x 50ug/ml, nonane Price on request