Withdrawn Documents
Document Name
Withdrawn Date
Reason for Withdrawal
Manufactured Goods ISO IEC 17025 Annex – Fire Safety Testing
June 2026
Upon review, the requirements in this document were found to either duplicate requirements already addressed by ISO/IEC 17025 and the existing NATA Accreditation Criteria (e.g. equipment verification, facilities and environmental conditions), or fall outside the scope of NATA’s accreditation remit (e.g. workplace safety requirements such as fire extinguishers). As the document does not provide additional interpretative value beyond these existing requirements, it has been withdrawn.
Infrastructure and Asset Integrity ISO IEC 17025 – Measurement Uncertainty in NDT
June 2026
This guidance document was originally published in 2011 to support accredited facilities in developing their own approach to estimating measurement uncertainty (‘MU’) in NDT. Since that time, the industry’s understanding of MU in NDT has matured, and more authoritative and comprehensive resources are now available. On review, and on the recommendation of the Integrity of Equipment and Structures Accreditation Advisory Committee, it has been determined that the document no longer serves its intended purpose as a guidance resource. Facilities requiring guidance on MU in NDT should refer to publications such as the JCGM Guide to the Expression of Uncertainty in Measurement (‘GUM’) or to NDT industry bodies.
Transition Policy for the implementation of ISO 15189:2002
February 2026
All sites transitioned. Document no longer required
ISO 15189:2022 Gap analysis
February 2026
All sites transitioned. Document no longer required
ISO 15189:2022 Application Document – Medical Testing – Supplementary Requirements for Accreditation (SAD) – Effective August 2023
February 2026
All sites transitioned. Document effective February 2026 now applies
ISO 15189:2012 Application Document – Medical Testing – Supplementary Requirements for Accreditation (SAD) – Effective until December 2025
January 2026
All sites transitioned. Document effective February 2026 now applies
ASA Standard for Sleep Disorders Services (March 2019) Gap Analysis
January 2026
All sites have transitioned
Transition Policy for the Implementation of the ASA Standard for Sleep Disorders Services
January 2026
All sites have transitioned
General Accreditation Criteria
Corporate accreditation – accreditation of
multiple site facilities and/or facilities
accredited in multiple programs
December 2025
All relevant facilities have now been transitioned to MSA and this document is no longer required.
Infrastructure and Asset Integrity – Measurement Uncertainty for Geotechnical Testing
October 2025
Most methods used by testing facilities are standard methods that comply with ISO/IEC 17025 Clause 7.6 Note 1, and most facilities therefore do not need to estimate measurement uncertainty. For those methods where Note 1 does not apply, facilities are recommended to seek expert guidance from publications such as the JCGM Guide to the Expression of Uncertainty in Measurement, or guides such as those from Eurachem and NordTest.
Specific Accreditation Guidance – Materials – Characterisation of Metallic Items by X-Ray Fluorescence and Atomic (Ark-Spark) Emission Techniques
March 2025
General Accreditation Guidance: Liquid-in-glass thermometers – selection, use and calibration checks
June 2023
Document originally published when there was limited available information on this topic. NMI Monograph 9: Liquid-in-Glass Thermometry has since been published. Other National Measurements Institutions also have similar publications, eg Measurement Standards Laboratory of New Zealand (MSL) and NIST
General Accreditation Guidance – Validation and verification of quantitative and qualitative test methods
April 2022
Upon review identified that there are a number of informative guidance documents on this subject from well-respected scientific organisations, written by subject matter experts, for example, EURACHEM Guide 2014 (updated 2019) The Fitness for Purpose of Analytical Methods: A Laboratory Guide to Method Validation and Related Topics. These guidance documents provide similar information and as such it was determined that the guidance provided in the NATA document does not contribute additional information that cannot be obtained from other sources.