Standards and Standardization
ISO standard preparation process
In ISO, the process is somewhat different than in CEN:
- Three-phase voting, first Committee Draft (ISO/CD), then Draft International Standard (ISO/DIS) and finally Final Draft International Standard (ISO/FDIS).
- Only those countries who have registered as active members ("P-members") for the relevant TC are allowed to vote.
- Each P-member has one vote. At the final voting, at least 75% of the votes must be positive.
- Adoption of ISO standards as national standards is completely voluntary.
For more information see Developing ISO standards.
"EN ISO" standards
A standard originally prepared by an ISO TC can be adopted, without changing its contents, as European Standard – or ISO can adopt a European Standard as an International Standard as well. In both cases the standard becomes and EN ISO standard, as well as in those cases in which a completely new standard is prepared under the Vienna Agreement.
Elaboration of standards in parallel under the Vienna Agreement