There are a number of international fora that are specifically designed to deal with statistical standards. With the OECD, for example, there is a committee on statistics and statistical policies where things are discussed. On a more global level, it is the UN Statistical Commission that basically comes up with the worldwide standards for statistics.
I think that is handled relatively well internationally, especially in those areas that are part of the standard statistical system: trade statistics, national accounts, prices. We do have relatively good international standardization.