ASTM D-4815 Calibration Mix #1 Back Catalog number: 51064 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 676682 Citric acid monohydrate, 100mg Price on request 79696 Pyrene-d10, 1000µg/mL in acetonitrile, 1ml Price on request 1487.20-10UG Phenanthryl-9-O-glucuronide, neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 177194-36-4 Price on request