Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

CCQM_Retrospectoscope Quick Start: A beginner's guide to a data analysis system for visualizing results from CCQM studies

Published

Author(s)

David L. Duewer, Michael Nelson, Christina Cecelski

Abstract

The CCQM_Retrospectoscope system combines a database of results from Consultative Committee for the Amount of Substance: Metrology in Chemistry and Biology (CCQM) studies with a number of graphical tools for trying to make sense of the data. This system supports fairly comprehensive and potentially novel appraisals of participation and measurement performance throughout the history of the CCQM activities. The appraisals include the bias, uncertainty, and degrees of equivalence of results submitted by individual national metrology or designated institutes (NMI|DIs); the relative performance of NMI|DIs, and the uncertainty function characteristic of entire Working Groups (WGs). This "Quick Start" guide is intended to introduce potential users to the system and help them get started using it.
Citation
NIST Interagency/Internal Report (NISTIR) - 8487
Report Number
8487

Keywords

Consultative Committee for the Amount of Substance: Metrology in Chemistry and Biology (CCQM), Key Comparisons (KC), national metrology institute or designated institute (NMI|DI), pilot studies, Supplementary Comparisons (SC).

Citation

Duewer, D. , Nelson, M. and Cecelski, C. (2023), CCQM_Retrospectoscope Quick Start: A beginner's guide to a data analysis system for visualizing results from CCQM studies, NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NIST.IR.8487, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=956559 (Accessed May 21, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created September 12, 2023