ANAB Logo

ANAB Guidance for ISO/IEC 17025

Guidance on Scopes of Accreditation

Recommendations and guidance to assist ANAB assessors and accredited and applicant labs in drafting scopes of accreditation, and to allow adherence to both ILAC guidance documents and ANAB requirements, while helping standardize formats across the range of potential accredited tests and calibrations in the sphere of ISO/IEC 17025-accredited operations.

Guidance on Proficiency Testing/Inter-laboratory Comparisons

Intended to give ANAB customers, assessors, and experts the necessary understanding of proficiency testing/inter-laboratory comparisons to achieve and/or maintain accreditation to ISO/IEC 17025.

Guidance on Metrological Traceability

Guidance on traceability requirements for ANAB-accredited labs, which are required to demonstrate traceability for their reference standards and reference materials (in most cases includes measurement uncertainty).

Guidance on Uncertainty for Testing Laboratories

Testing laboratories are required to demonstrate traceability and measurement uncertainty as defined in this document.

Guidance on Reporting Uncertainty of Measurement for Calibration Laboratories

Calibration laboratories are required to demonstrate traceability and measurement uncertainty as defined in this document.

Guidance on Measurement Uncertainty for Hand Tools, Hand Gages, and Scales/Balances Using a Modified NRC Uncertainty

Provides examples of uncertainty budgets for hand tools, hand gages, and scales and balances to help provide a better understanding of preparing an uncertainty budget. Not intended to encompass all the statistical treatments required for many uncertainty determinations. Designed to assist calculations in many of the simplest situations, not requiring statistical use of degrees of freedom for example.

Guidance on Statements of Compliance on Calibration Certificates

To assist calibration laboratories in determining and reporting customer-requested compliance to specifications on accredited calibration certificates. Also provides guidance to assessors in evaluating the appropriateness of reported statements of compliance by accredited and applicant labs.

Guidance on Use of the ANAB Accreditation Symbol and ILAC Laboratory Combined MRA Mark

ANAB issues symbols specific to each accreditation program to accredited organizations to indicate their accredited status. Only ANAB-accredited organizations are authorized to use these symbols.

Guidance for Classification and Assessment of Multi-site Laboratories

ISO/IEC 17025 applies to laboratories that perform tests and/or calibrations in the main lab and at other locations. In this document, the term on-site refers to tests and/or calibrations performed at the accredited organization or a third-party location.

Guidance on Surveillance and Reassessments

Establishes guidance on surveillance and reassessment activities and applies to all accredited and applicant laboratories.

Also see ANAB Forensic Guidance Documents