IP 391-95 Calibration Level 3 Back Catalog number: 98403 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79738 Chloral hydrate, 1000µg/ml in Acetonitrile, 1ml Price on request 18000-0070-100AN5 L-Ascorbic acid sodium, 100µg/ml in Acetonitrile, Price on request 676921 Benzthiazuron, 100 µg/ml, Acetonitrile, 1ml Price on request