Proficiency Testing
Laboratories are committed to optimum quality of their instruments, procedures and measurement capabilities. To do this, they usually work with internal inspections. However, external validation is indispensable. VSL provides this, in the form of proficiency tests.
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The importance of proficiency testing
Systematic measurement deviations that develop over time cannot be detected by internal audits alone. Several accreditations, as well as ISO/IEC 17025:2017, therefore require laboratories to participate in Proficiency Tests (PT schemes) or interlaboratory comparisons (ILC). This involves an anonymous comparison of measurement results from multiple laboratories (benchmarking) to identify any deviations. VSL is an by RvA accredited PT provider (EN ISO/IEC 17043:2010 registratie nummer R006).
Proficiency testing in practice
During a Proficiency Test, all participating laboratories perform the same measurements and data analyses. The results are compared and compiled into a report in which each participant is assigned a unique code. Participants only know their own code, allowing them to anonymously compare their results with those of other laboratories. We treat the data confidentially and only disclose them to the laboratory itself.
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