​​​​​​​​​​​​​By offering proficiency testing in different laboratory fields, proficiency testing providers support laboratory quality assurance. In proficiency testing, laboratories are compared using the same method and the same samples under predetermined conditions. Typically, proficiency testing resembles the laboratory's routine samples and therefore provides a realistic idea of the laboratory's performance. Proficiency testing providers verify that the samples are sufficiently stable and homogenous to ensure that the assessment of the performance of laboratories is reliable. Statistical methods are taken into account in the processing of the results.

FINAS  accredited proficiency testing providers  offer their services to both Finnish and foreign laboratories.

Further information on international proficiency testing providers is available at www.eptis.bam.de.

More information is availabe in the finnish website Providers of proficiency testing ​

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