B.11

[Withdrawn] Legal time - Use of the term UTC  
Deleted on 2004-03-01, since UTC time scale is defined and recommended by the ITU-R and maintained by the Bureau International des Poids et Mesures (BIPM), and is thus outside the scope of ITU-T

B.1

[Withdrawn] Letter symbols for telecommunications  
Deleted after its content became technically out of date

B.3

[Withdrawn] Use of the international system of units (SI)  
Deleted after its content became technically out of date

B.10

[Withdrawn] Graphical symbols and rules for the preparation of documentation in telecommunications  
Deleted after its content became technically out of date

B.12

[Withdrawn] Use of the decibel and the neper in telecommunications  
Deleted since its content is covered by ITU-T Rec. G.100.1

B.13

[Withdrawn] Terms and definitions  
Deleted after its content became technically out of date

B.14

[Withdrawn] Terms and symbols for information quantities in telecommunications  
Deleted after its content became technically out of date

B.15

[Withdrawn] Nomenclature of the frequency and wavelength bands used in telecommunications  
Deleted; refer to ITU-R definitions

B.16

[Withdrawn] Use of certain terms linked with physical quantities  
Deleted; refer to ITU-R definitions

B.17

[Withdrawn] Adoption of the CCITT Specification and Description Language (SDL)  
ITU-T B.17 was deleted as its content is adequately covered by Rec. Z.110

B.18

[Withdrawn] Traffic intensity unit  
Deleted because its content is already covered by ITU-T E.600

B.19

[Withdrawn] Abbreviations and initials used in telecommunications  
Deleted after its content became technically out of date