Unfortunately article 2.2.2.1 (page 18) in the recently published version of FIPO contained a reference to the no longer existing rule about measurements of bits. The sentence was overlooked during the final editing of the text. A corrected version (6.6.1/2006) has been made available in the download section of the FEIF website: www.feif.org/service; it is also possible to download the corrected page 18 only.