Guide

What Is ISO/IEC 17025? A Plain-English Guide

August 24, 2026 · 1 min read

ISO/IEC 17025 is the international standard for the competence of testing and calibration laboratories. Accreditation to it tells customers and regulators your results can be trusted.

What the standard covers

It’s organized into general, structural, resource, process and management-system requirements (clauses 4–8) — covering impartiality, personnel, equipment, methods, measurement uncertainty, reporting and continual improvement.

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Why accreditation matters

Accreditation by a recognized body demonstrates technical competence and valid results, often a requirement for regulated work.

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How the documentation fits together

A compliant quality management system needs controlled policies, procedures, forms and records. Explore our guides on document control, internal audits, risk assessment and method validation.

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