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Proficiency Test Policy and Plan (for State Weights & Measures Laboratories)



Georgia L. Harris, J C. Gust


As part of the State Laboratory Program (SLP) described in NIST Handbook 143, the WMD is responsible for Regional Measurement Assurance Programs (RMAPs) where Metrologists from State legal metrology laboratories in six regions are required to attend annual training and participate in proficiency testing in planned measurement areas for which they will seek WMD recognition. This proficiency testing policy and plan is designed to function as a template to assist the States and Regional Measurement Assurance Program (RMAP) groups in identifying the minimum level of proficiency testing needed on an ongoing basis to comply with international expectations.This document has been prepared by Jeff C. Gust (Quametec Corp., under contract) in collaboration with NIST Weights and Measures Division staff and participating State laboratories as a first step in the process of enabling State weights and measures laboratories to comply with criteria for proficiency testing as noted in NIST Handbook 143 and as needed for accreditation programs. This project is intended to align NIST policies to international mutual recognition arrangement requirements, and to ensure that proficiency tests developed within this program meet all international requirements for design, development, execution, analysis and reporting of proficiency tests.
NIST Interagency/Internal Report (NISTIR) - 7082
Report Number


interlaboratory comparison, measurement assurance, proficiency testing, round robin, weights and measures


Harris, G. and Gust, J. (2004), Proficiency Test Policy and Plan (for State Weights & Measures Laboratories), NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD (Accessed July 12, 2024)


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Created January 1, 2004, Updated October 16, 2008