Established in 2017, CGPTP is a globally recognised provider of proficiency tests, running over 400 tests annually across an extensive range of matrices and analyses for the food and water, environmental chemistry and microbiology sectors.

Taking part in our proficiency tests provides you with the confidence in your laboratory equipment, methods and staff, and assurance that you are delivering the quality results required by your customers.

We provide our participants with a confidential service that allows you to participate at a level that suits you; there is no minimum number of proficiency tests that you must take part in each year.


Proficiency tests

Proficiency testing is an essential part of laboratory quality assurance and participation is an expected requirement of ISO 17025 accreditation. CGPTP proficiency testing provides an independent assessment of your laboratory performance and compares your results to laboratories worldwide.

Why choose CGPTP proficiency testing schemes?

  • Trusted PT provider since 1990, accredited to ISO 17043
  • Offering the widest range of analyte/matrix combinations for the food sector
  • Results receive rigorous statistical analysis by PT experts
  • Detailed confidential reports with clear feedback and method comparisons
  • Fast publication of the report
  • Easy result reporting through the secure area of our website


CGPTP is not responsible for errors or omissions in the contents of this website.
The contents of this website are provided “as is” without warranty of any kind, either express or implied, including but not limited to, the implied warranties of merchantability, fitness for a particular purpose, or non-infringement. Furthermore, CGPTP does not warrant the accuracy or completeness of the information, text, graphics, links or other items contained within these materials. CGPTP shall not be liable for any special, indirect, incidental, or consequential damages, including without limitation, lost revenues or lost profits, which may result from the use of these materials. The information in this website is subject to change without notice and does not represent a commitment on the part of CGPTP in the future.