4. Special cases of pyrometric rods

The aim of this section is to use a few examples to illustrate the extreme diversity of solutions that have been offered to users, depending on their needs, and thus to guide the reader towards the problems that he or she will have to solve according to his or her own requirements.

• Measurements in molten solids

  The following situations are frequently encountered:

• Glass: pyrometric rods for molten glass use platinum or platinum-rhodium protection materials, which are the only materials capable of withstanding continuous contact with liquid glass.