The NELAC Fields of Proficiency Testing (FoPT) tables contain the concentration ranges, acceptance limits and proficiency testing reporting limits (PTRL) for all analytes included in the NELAC PT program.


FoPT table for Drinking Water (effective October 1, 2020)
FoPT table for Non-Potable Water (effective October 1, 2020)
FoPT table for Solid and Chemical Materials (effective October 1, 2020)
FoPT table for Radiochemistry (effective October 1, 2007)
FoPT table for Whole Effluent Toxicity (effective July 31, 2016)


If you have any questions about these tables or any other aspect of NELAC proficiency testing, please contact us.