IEC 61207-2:2019

This second edition cancels and replaces the first edition published in 1994. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition.
a) all the terms and definitions relating to the document have been updated where appropriate;
b) the description of the principle of the galvanic cell has been expanded and clarified;
c) new definitions and illustrations have been added for different measurement methods for oxygen using solid electrolytes for galvanic cells;
d) new illustrations have been added for existing descriptions for ion pump cells;
e) a more detailed description of the effect of the presence of oxidizable gases has been added;
f) all references to “errors” have been replaced by “uncertainties” and appropriate updated definitions applied.