Calibration Standard Set Back Catalog number: 53032 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C13460500 Fenchlorphos-oxon, certified, 0.1g Price on request 13800-0050-1000IO Diallyl phthalate, 1000µg/ml in Isooctane, 5ml Price on request T-PFOS Potassium perfluorooctanesulfonate (Technical Grade), 1.2ml x 50ug/ml, methanol Price on request