<< Click to Display Table of Contents >> Navigation:  Hardware Overview > Sensors and Probes > HCD-IC > Humidity and Temperature Calibration/Adjustment > Basic Recommendations > Rotronic Humidity Standard (RHS) > General Description of the Humidity Standards

The Rotronic ISO-17025 certified standards are available in boxes of 5 glass ampoules of the same value, which can be stored indefinitely. Standards in the range of 5 to 95 %RH are nonsaturated aqueous salt solutions that are precisely titrated at our factory for the right concentration. The 0 %RH humidity standard is made of small granules of a highly porous ceramic that have been dried at a high temperature. A Material Safety Data Sheet is available for each standard. Since most standards are a salt solution, parts which have come in contact with the liquid should be cleaned after each use.

 

Each box of standards comes with a certificate that provides statistical information on the manufacturing batch of the standard.

 

Information on the effect of temperature on each standard is provided on the cover of each box of standard. The value of the standards is not affected by altitude.