This 1,413 µS/cm conductivity standard that is prepared against a NIST traceable potassium chloride solution and comes with a certificate of analysis. The solution is contained in an opaque, light-tight bottle that meets FDA requirements. The solution has the lot number and expiration date clearly marked on the label and has an air tight, tamper-proof seal. Expires 5 years from the date of manufacture for an unopened bottle.

This 1,413 µS/cm conductivity standard that is prepared against a NIST traceable potassium chloride solution and comes with a certificate of analysis. The solution is contained in an opaque, light-tight bottle that meets FDA requirements. The solution has the lot number and expiration date clearly marked on the label and has an air tight, tamper-proof seal. Expires 5 years from the date of manufacture for an unopened bottle.