Humidity Standards over-saturated salt solution

Humidity Standards

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Humidity standards are used for verification and calibration of water activity meters

Our SAL-T humidity standards are about over-saturated salt solution according (to Greenspan report, 1977). Although a defined air humidity is created over the surface of those standards which can be used for verification or calibration of a water activity sensor. The unique design of the salt standard allows re-use over a period of 3-5years (field experience) or even longer, depending on handling. This fact brings the maintenance costs of a Novasina water activity meter to low levels.


  • Re-usable for the low cost of maintenance
  • Safe design avoids contact with liquid or salt
  • Various humidity standards for specific measurement ranges
  • Easy, optical control by user to verify the salt standard status

Available in the following values

N01116453SAL-T-6 (6 % rh)
NO1110930SAL-T-11 (11 % rh)
NO1110932SAL-T-33 (33 % rh)
NO1110934SAL-T-53 (53 % rh)
NO1110936SAL-T-75 (75 % rh)
NO1119886SAL-T-84 (84 % rh)
NO1110938SAL-T-90 (90 % rh)
NO1119887SAL-T-97 (97 % rh)