Calibration Standard Kit Back Catalog number: 53089 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 676422 Ketoprofen, 100mg Price on request 9689.X-140-5HC Descarbamoylgonyautoxin-2 and -3,116+26.1 µM,HCl/AcOH(Aq),0.5mL Price on request 59747 Metals Mix Price on request