Calibration Std. #1 Back Catalog number: 59964X Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 72263 Sulfamethazine, 1000µg/ml in MeOH, 1ml Price on request 66086 2,2',3,4,5-Pentachlorobiphenyl Price on request MIC006 WS (drinking water) Quantitative E.Coli Price on request