As PT Nexus – Connecting Laboratories. Advancing Quality., we view quality not merely as meeting certain standards, but as a continuous improvement mindset that forms the foundation of all our processes. We aim to deliver our Proficiency Testing (PT) and Interlaboratory Comparison (ILC) programs in line with the principles of scientific approach, impartiality, technical competence, traceability, reliability, and continual improvement.
The reliability, accuracy, and comparability of measurement and analysis results obtained by laboratories are critically important across many fields—from scientific research and manufacturing to environmental testing, food, and healthcare applications. For this reason, our quality policy is centered on establishing PT and ILC processes that support reliable measurement results, can be objectively evaluated, and can be continuously improved.
At PT Nexus, we believe that the reliability of proficiency testing programs must be built on a strong technical foundation. In program design, test material management, result evaluation, statistical analysis, and reporting, we aim to take into account the relevant technical requirements and widely accepted scientific approaches.
We plan each program’s scope and evaluation structure by considering the specific characteristics of the relevant testing or measurement field, supporting meaningful and objective assessment of laboratory performance based on valid data.
Scientific accuracy is the cornerstone of PT Nexus’s quality approach.
One of the most essential elements of a reliable proficiency testing evaluation process is impartiality. PT Nexus is committed to assessing participating laboratories’ performance according to predefined, program-appropriate, objective criteria.
Without discrimination among participants, we focus on evaluating results from both technical and statistical perspectives. We regard impartiality not only as a quality principle, but also as a fundamental condition of the trust we build with laboratories.
We believe that sustainable quality management requires processes to be reviewed and improved on a regular basis. At PT Nexus, we treat feedback from our programs, technical evaluations, and process performance as key inputs to our continual improvement efforts.
Our aim is to:
We view every evaluation as a new opportunity for improvement.
The reliability of a proficiency testing program depends not only on the accuracy of final results, but also on the ability to control and trace the process end to end. PT Nexus prioritizes the systematic management of processes—from program applications and participant records to document management, result submission, technical evaluations, and final reporting.
By managing records appropriately, we aim to support retrospective review of processes and ensure that relevant information can be accessed whenever needed.
We aim to conduct all our activities in a way that supports laboratories in assessing their technical competence and improving the reliability of their measurement results.
The main purpose of our quality policy is to contribute to the development of the laboratory quality ecosystem by providing reliable, objective, traceable, and sustainable Proficiency Testing and Interlaboratory Comparison programs.
