Calibration Standard Kit Back Catalog number: 52090 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 54123 Ammonia as N, 100µg/ml in Water, 100ml Price on request 9283.25-100MG Simvastatin, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 79902-63-9 Price on request DF-28-S 2,8-Dichlorodibenzofuran, 1.2ml x 50ug/ml, nonane Price on request