Glass thermometers and hydrometers are remarkably stable and reliable indicating devices. Nonetheless, changes in the indications of a given instrument do occur, as a result of temperature cycling and day-to-day handling. When a thermometer is heated, the liquid...
Consideration should be given to the frequency of use, the parameters of the application (temperatures at which it is used, the severity of the use) and the requirements of the regulatory agencies and/or the quality system you may be using. In general, for most...
Choosing Test Points (Test Temperatures) For Liquid-in-glass Themometers If your thermometer is an ASTM thermometer (it will have the inscription ‘ASTM 1C’ or similar), the standard test temperatures are specified by ASTM specification E-1 (and appear in...
