Calibration Standard Kit Back Catalog number: 53090 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 682389 Ipronidazole-hydroxy, 100 µg/ml, Methanol, 1ml Price on request 98808 Haloacetic Acids Price on request 676365 Nonafluoro-1-butanesulfonic acid, 100mg Price on request