Measurement uncertainty
A quantitative statement of the range within which the true value of a measurement lies, at a stated confidence level (typically 95%, k=2). Required for all quantitative results under ISO/IEC 17025:2017 Clause 7.6. Calculated by combining random error (precision RSD) with systematic error (accuracy/trueness) and calibration contributions.
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Corrective action and CAPAENFSI (European Network of Forensic Science Institutes)ILAC MRA (International Laboratory Accreditation Cooperation Mutual Recognition Arrangement)ISO/IEC 17025:2017Management reviewMethod validationNABL (National Accreditation Board for Testing and Calibration Laboratories)Proficiency testing (PT)SWGDRUG