Interlaboratory studies for method evaluation

 

 
Ideally an analysis certificate of a commodity, issued by a laboratory should be similar to that issued by other laboratories that have analysed the same commodity. That nonetheless minor differences may exist between the certificates is caused by the measuring uncertainties of the analytical methods.
The measuring uncertainty of an analysis method is determined during its validation process. Many laboratories usually cooperate in the validation of a method. Once a method has been validated it can be expected that any laboratory applying the method will find results within the measuring uncertainty.
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