ASTM D-4815 Oxygenates Calibration Set Back Catalog number: 51063 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 679801 Ofloxacin, 100 µg/ml, Methanol, 1ml Price on request 92386 525.2 Internal & Surrogate Standard Price on request 676134 S-Metolachlor Metabolite CGA 50720, 100 µg/ml, Ac Price on request