Accreditation of Calibration Laboratories

Calibration laboratory accreditation gives confidence that measurement results are technically valid, traceable, and produced under a controlled management system.

Purpose

This program is intended for laboratories that perform calibrations of measuring instruments, standards, and reference equipment. Accreditation supports reliable measurement in industry, testing, inspection, certification, and regulatory activities.

  • Demonstrates technical competence for defined calibration scopes.
  • Supports metrological traceability to recognized references.
  • Confirms suitable equipment, methods, uncertainty evaluation, and quality controls.

Typical requirements

Applicants are normally assessed against the applicable laboratory competence standard and IACA requirements for impartiality, personnel competence, facilities, equipment control, records, and reporting.

  • Documented management system and internal audit records.
  • Validated or verified calibration methods.
  • Measurement uncertainty budgets and traceability records.
  • Proficiency testing or interlaboratory comparison where applicable.

Assessment focus

Assessment includes review of documents, technical records, equipment control, staff competence, environmental conditions, and witnessed calibration activities within the requested scope.

  • Calibration certificates and reporting practices.
  • Handling of nonconforming work and corrective actions.
  • Use of reference standards and maintenance records.

Applications and contact

Organizations seeking accreditation should review the current documents in the Center of Documents and contact IACA before submitting an application, so the correct scope, standard, and supporting records can be confirmed.

Email: accreditation@iacaab.org / info@iacaab.org