| In force components |
Number
|
Title |
Status |
X.521 (10/19)
� |
Information technology - Open Systems Interconnection - The Directory: Selected object classes
�
|
In force
|
X.521 (2019) Amendment 1 (10/24)
� |
�
|
In force (prepublished)
|
�
� |
| Superseded and Withdrawn components |
Number
|
Title |
Status |
X.521 (11/88)
� |
The Directory - Selected object classes
�
|
Superseded
|
X.521 (11/93)
� |
Information technology - Open Systems Interconnection - The directory: Selected object classes
�
|
Superseded
|
X.521 (08/97)
� |
Information technology - Open Systems Interconnection - The Directory: Selected object classes
�
|
Superseded
|
X.521 Amendment 1 (03/00)
� |
Enhancements for the support of ITU-T Recommendation F.510, and for certificate extensions
�
Never published, consolidated in ITU-T X.521 (02/2001). Only the electronic prepublished version is available on ITU Website
|
Superseded
|
X.521 (1997) Technical Cor. 1 (02/01)
� |
�
|
Superseded
|
X.521 (02/01)
� |
Information technology - Open Systems Interconnection - The Directory: Selected object classes
�
|
Superseded
|
X.521 (08/05)
� |
Information technology - Open Systems Interconnection - The Directory: Selected object classes
�
|
Superseded
|
X.521 (2005) Corrigendum 1 (04/12)
� |
�
|
Superseded
|
X.521 (11/08)
� |
Information technology - Open Systems Interconnection - The Directory: Selected object classes
�
|
Superseded
|
X.521 (2008) Corrigendum 1 (04/12)
� |
�
|
Superseded
|
X.521 (10/12)
� |
Information technology - Open Systems Interconnection - The Directory: Selected object classes
�
|
Superseded
|
X.521 (10/16)
� |
Information technology - Open Systems Interconnection - The Directory: Selected object classes
�
|
Superseded
|
