Hanna Instruments 12880 uS/cm Conductivity Standard, 500 mL

HI7030L is a premium quality 12,880 µS/cm conductivity standard that is prepared against a NIST traceable potassium chloride solution. Hanna conductivity solutions have the lot number and expiration date clearly marked on the label and are air tight with a tamper-proof seal to ensure the quality of the solution. Hanna's line of conductivity standards have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened bottle. Temperature chart of the actual µS/cm value at various temperatures printed on each bottle Air tight bottle with tamper-proof seal to ensure quality