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INTER - LABORATORY COMPARISON STUDIES

Clause 7.7 requires:

Laboratory to have quality control procedures for monitoring the validity of testing and calibrations that have been performed. This can include participating in inter - laboratory comparison studies or proficiency testing programs.


In addition, Inter-laboratory comparison studies can perform other purposes including:


  1. Accessing the inter-laboratory reliability and robustness of analytical methods, and are typically the final stage of a method validation program, and may be carried out on an ongoing bases
  2. Assigning values to certified reference materials
  3. Supporting statements of equivalency of measurement by national metrology laboratories

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