I'm asking about standards promoted by ISO, IEEE, ITU, intergovernmental bodies, or simply de-facto standards.
For instance, MIL-STD-1553 defines serial data bus used in avionics all over the world.
What are the significant technologies applicable to spacecraft where international standardization has taken root? (The above example of 1553 buses also shows extensive use of the standard in decidedly non-NATO countries - e.g. Russia, are there any other standardization "success stories"?).
What are the specific disadvantages of international standardization in space exploration?