Hanna Instrument HI70442L 1500 mg/L (ppm) TDS Calibration Solution (500 mL Bottle)

HI70442L is a high-quality 1,500 mg/L (ppm) TDS calibration solution based on a NIST traceable potassium chloride solution. Hanna TDS solutions are airtight with a tamper-proof seal and have the lot number and expiration date clearly marked on the label to ensure the quality of the solution. Hanna’s TDS calibration solutions have been specially formulated to have an unopened bottle expiration date of 5 years from the date of manufacture.

  • TDS calibration solution of 1,500 mg/L (ppm).
  • Each bottle has a temperature chart with the actual S/cm value at various temperatures printed on it.
  • To ensure quality, use an airtight bottle with a tamper-proof seal.