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Proficiency Testing

Laboratory proficiency testing (PT) programs are an essential component of laboratory quality assurance. Comparing the performance of your laboratory’s instruments, analytical methods, and personnel with peer laboratories helps ensure accurate, reliable, and defensible analytical data.

Proficiency testing supports regulatory compliance and laboratory accreditation requirements while strengthening confidence in testing results. Participation in PT programs allows laboratories to evaluate analytical performance, verify method accuracy, and maintain consistent quality control.

At Axion, we develop customized laboratory proficiency testing programs tailored to the needs of specific industries and analytical applications. Our programs can be designed for fuels compliance, grain processing, food monitoring, hemp and cannabis potency testing, and other specialized laboratory sectors.


Why Choose Axion’s Proficiency Testing Programs?

  • Industry-Specific Design: Customized programs catered to the specific needs of your sector or laboratory focus.

  • Regulatory Alignment: Ensures adherence to ISO 17025 standards and other industry certifications.

  • Benchmarking Excellence: Provides an objective comparison of your lab’s performance against peer laboratories, helping you pinpoint areas for improvement.

  • Defensible Data: Demonstrates a commitment to accuracy and reliability in testing results.


Axion provides customized proficiency testing programs for laboratories across multiple industries. To learn more about developing a PT program for your organization, contact us.

Proficiency Testing FAQs

  • Laboratory proficiency testing (PT) is a quality assurance process where multiple laboratories analyze the same sample and compare results. PT programs help laboratories verify analytical accuracy, identify potential errors, and maintain reliable testing performance.

  • Proficiency testing helps laboratories confirm that their analytical methods, instruments, and procedures produce accurate and consistent results. It is also commonly required for laboratory accreditation and regulatory compliance.

  • In a proficiency testing program, participating laboratories receive identical test samples and analyze them using their standard methods. Results are then compared across laboratories to evaluate analytical accuracy and performance.

  • Many laboratory accreditation programs, including ISO-based systems, require participation in proficiency testing as part of ongoing quality assurance and performance verification.

  • Proficiency testing is commonly used by environmental laboratories, pharmaceutical laboratories, food and agricultural testing facilities, and research laboratories to verify analytical accuracy and maintain quality standards.

  • Participation frequency depends on regulatory requirements and laboratory accreditation guidelines, but many laboratories participate in PT programs annually or multiple times per year to maintain quality assurance.