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ISO/IEC 17025

Testing & calibration laboratory competenceissuer ISO/IECversion 2017verified 2026-08

ISO/IEC 17025 specifies the general requirements for the competence, impartiality and consistent operation of testing and calibration laboratories. In iGaming it is the foundation of the game-testing ecosystem: independent labs such as GLI, eCOGRA and iTech Labs hold ISO/IEC 17025 accreditation to demonstrate they are competent to test RNGs, verify return-to-player (RTP) figures and confirm game fairness. Accreditation to this standard is what lets regulators and operators trust a lab's certificates.

Current version

ISO management standard

2017

What it covers
Personnel competence, training and authorisationImpartiality and management of conflicts of interestValidation and verification of test methodsMetrological traceability and equipment calibrationParticipation in proficiency testing / inter-lab comparisonsReporting of results and statements of conformityManagement system supporting laboratory activities
Applies to
Testing laboratories (e.g. accredited gaming/iGaming test labs)Calibration laboratoriesIn-house and third-party labs generating test dataAccreditation bodies assessing laboratory competence
Key facts
IssuerISO/IEC
CategoryISO management standard
Where it’s usedGlobal; underpins the accreditation of gaming and lottery test laboratories worldwide, recognised through international mutual-recognition arrangements (e.g. ILAC).
Current editionThird edition, ISO/IEC 17025:2017Cancelled and replaced the 2005 second edition.
Full titleGeneral requirements for the competence of testing and calibration laboratories
Issued byISO and IEC (jointly)
Role in iGamingAccreditation basis for independent game-testing labs (RNG, RTP, fairness).GLI holds ISO/IEC 17025, 17020 and 17065 accreditation; eCOGRA tests to ISO/IEC 17025:2017.
Related standards
ISO/IEC 17020ISO/IEC 17065ISO/IEC 17021-1
Related terms
rngrtpgame providerlicence jurisdiction
Sources
ISO/IEC 17025:2017 — official ISO catalogue pageiso.org
GLI — first lab with A2LA approval for the 2017 version of ISO/IEC 17025gaminglabs.com
eCOGRA certification (conformity assessment to ISO/IEC 17025:2017, 17020, 17065)ecogra.org

A standard is a ruleset, not a promise. A certificate against ISO/IEC 17025 attests that a game or system met it at test time — it does not change the house edge or guarantee a session outcome. This is a teaching summary; confirm against the issuer (ISO/IEC).

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