ASTM D-4815 Calibration Mix #2A Back Catalog number: 51214 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 59939 Potassium (K) Price on request 9267.22-25-AN U{13C22}-Roquefortine C, 25µg/mL, Solvent-acetonitrile, Unit 1.2mL, # of units-1, Cas.no. Price on request 3892.10-100-ME Carvone, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 99-49-0 Price on request