How to Use Risk Evaluation to Develop a PT Participation Plan

摘要

In the past, proficiency testing (PT) items and participation frequency were formulated by accreditation bodies, regardless of the scale, customer type, and economic conditions of a laboratory. In 2010, ILAC P9 began requiring the applicant laboratories considering needs and risk level to make their own PT participation plan (hereafter referred as the PT plan, for short), as long as the PT program was feasible both logistically and economically.