scope:

Foreword

IS0 (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of IS0 or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particular fieIds of technical activity. IS0 and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with IS0 and IEC, also take part in the work.

In the field of information technology, IS0 and IEC have established a joint technical committee, ISO/IEC JTC I . Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an International Standard requires approval by at least 75 9% of the national bodies casting a vote.

Amendment 1 to International Standard ISO/IEC 10164-4: 1992 was prepared by Joint Technical Committee ISOLIEC JTC 1, Information technology, Subcommittee SC 21, Open systems interconnection, datu management and open distributed processing, in collaboration with ITU-T. The identical text is published as ITU-T Rec. X.733/Amd. 1.