SDWA Corrosivity (Langlier Index) Back Catalog number: 55121 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677217 gamma-HCH, 10 µg/ml, Acetonitrile, 10ml Price on request 673097 5,5-Diphenylhydantoin, 250mg Price on request C16880000 Rutin hydrate, certified, 0.5g Price on request