Global markets with expanding streams of exported/imported goods involve a focused attention on equivalence of analytical results. Indeed, analytical results play a major role in free and fair trade.
Apparently, independent local calibration cannot always fulfil the rising demands forworldwide equivalence of analytical results.
It occurs that worldwide equivalence of analytical results cannot be safeguarded by “solely” producing standardized analytical methods. In addition, with some parameters, standardized reference materials are lacking and the reference method shows limited performance.
Thus, sophisticated large scale reference systems are needed where traditional calibration schemes are lacking precision and effectiveness.