Alkalinity as Calcium Carbonate Back Catalog number: 50781 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 90593 Aroclor 1221 Price on request 78013 Pentachlorophenol, 1000µg/ml in MTBE, 1ml Price on request 15900-3588-100AN5 Omeprazol, 100µg/ml in Acetonitrile, 5ml Price on request