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Module 4 of 5 · ISO 17025 · Section 4

Ensuring the validity of results

Producing a result isn't enough: the lab must continually demonstrate it is capable of producing valid results.

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Monitoring result validity

Using reference materials, interlaboratory comparisons, replicates and other internal quality control methods.

Proficiency testing and interlaboratory comparison

Participating in external proficiency testing programmes as objective evidence of technical competence.

Reporting results

Clear, accurate and objective reports, with all the information needed to interpret them and measurement uncertainty where applicable.

What an auditor usually asks for

  • A documented internal quality control programme
  • Proficiency testing participation with satisfactory results
  • A results report template meeting the standard's requirements
  • A measurement uncertainty record where applicable

How to cover result assurance in Kimobox

  1. 1Log internal quality control results with their trend in Kimobox.
  2. 2Document proficiency testing participation and its results.
  3. 3Generate results reports from a controlled system template.

The internal quality control trend stays visible on a dashboard, not scattered across loose sheets.

See batch traceability and certificates in Kimobox

Where each figure comes from

References to the official text in force. If a standard is revised, this page is updated and the review date says so.

  1. ISO/IEC 17025:2017 — General requirements for the competence of testing and calibration laboratories ISO/IEC · November 2017
  2. Entidad Nacional de Acreditacion ENAC · Official portal
  3. ISO/IEC 17000:2020 — Conformity assessment. Vocabulary ISO/IEC · 2020 ed.