Assuring the quality of test and calibration results of ISO 17025
Assuring the quality of test and calibration results of ISO 17025
Clause 5.9
5.9.1 The laboratory shall have quality control procedures for monitoring the validity of tests and calibrations undertaken. The resulting data shall be recorded in such a way that trends are detectable and, where practicable, statistical techniques shall be applied to the reviewing of the results. This monitoring shall be planned and reviewed and may include, but not be limited to, the following:
a) regular use of certified reference materials and/or internal quality control using secondary reference materials;
b) participation in inter-laboratory comparison or proficiency-testing programs;
c) replicate tests or calibrations using the same or different methods;
d) retesting or recalibration of retained items;
e) correlation of results for different characteristics of an item.
NOTE The selected methods should be appropriate for the type and volume of the work undertaken.
5.9.2 Quality control data shall be analyzed and, where they are found to be outside pre-defined criteria, planned action shall be taken to correct the problem and to prevent incorrect results from being reported.
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on Tuesday, November 24th, 2009 at 1:47 pm and is filed under ISO 17025 standard.
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