Goals of a proficiency test

As described in the previous chapter, one of the goals of a

PT is to enable objective evaluation of laboratory performance.

This is the reason that in some countries the national

accreditation organisation organises PTs

But from the laboratory’s point of view, this is not the

only goal. Other relevant goals are in brief:

1-Comparison of own results with the results of other laboratories

by analysis of identical samples

2-Evaluation of trueness in cases where no certified reference

material is available

3-Quality improvement via corrective actions

Facilitation of training

Best wishes