Accreditation for proficiency test (PT) providers ensures customers of compliance with international standards and good practices. ANAB’s highly-trained experts and assessors provide integrity, independence, impartiality, confidentiality, and good service.

Customers of accredited proficiency test providers gain increased confidence that the programs they rely on are being operated competently in accordance with the specified technical and management system requirements.

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Accreditation requirements include ISO/IEC 17043 and/or domestic standards such as TNI Standard EL-V3-2016 and the relevant elements of ISO/IEC 17025.

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ISO/IEC 17043 Documents

Accreditation may entail any of a lengthy list of materials used for critical and measurable properties in testing and calibration. Much of the value for proficiency test provider accreditation, however, relates to international confidence in the proficiency testing schemes themselves. This leads to international trade assurances and assurances that international guidelines are followed in the production, labeling, and assignment of property values to materials, including stability and homogeneity determinations that are then factored in the proficiency testing results reported.

Accreditation involves assurance of technical competence and good quality management practices, but also adds verification of the proficiency test management of the provider. Our management and technical staff assure high-quality service, integrity, independence, impartiality, confidentiality, highly-trained experts and assessors, statistical expertise, and unmatched customer service.

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Accreditation Process

This diagram outlines the ANAB accreditation process:

Lab Accreditation

More information about the accreditation process

Request a quote or for more information about accreditation for proficiency testing providers, contact ANAB at or 414-501-5494.

ANAB provides accreditation for TNI Environment Proficiency Test Providers.


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