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PUBLICATIONS

CCQM_Retrospectoscope Reference Manual: A detailed reference to the CCQM_Retrospectoscope, a suite of graphical tools for the meta-analysis of measurement results from CCQM studies

Published

Author(s)

David L. Duewer, Christina Cecelski, Michael Nelson

Abstract

This document is a detailed reference manual for the 1-September-2024 version of the CCQM_Retrospectoscope system. The CCQM_Retrospectoscope combines a nominally complete 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. CCQM_Retrospectoscope supports a diverse collection of sometimes eye-opening appraisals of participation and measurement performance throughout the history of 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). The CCQM_Retrospectoscope is implemented in Excel using Microsoft Visual Basic for Applications (VBA) programs. It runs on both Windows and Macintosh platforms.
Citation
NIST Interagency/Internal Report (NISTIR) - 8478e2024
Report Number
8478e2024
NIST Pub Series
NIST Interagency/Internal Report (NISTIR)
Pub Type
NIST Pubs

Download Paper

https://doi.org/10.6028/NIST.IR.8478e2024
Local Download

Keywords

Consultative Committee for the Amount of Substance: Metrology in Chemistry and Biology (CCQM), designated institute (DI), Electroanalytical Working Group (EAWG), Gas Analysis Working Group (GAWG), graphical data analysis, Inorganic Analysis Working Group (IAWG), Key Comparison (KC), national metrology institute (NMI), Organic Analysis Working Group (OAWG), pilot study, Regional Metrology Organization (RMO), Supplementary Comparison (SC).
Metrology, Data and informatics and Amount of substance

Citation

Duewer, D. , Cecelski, C. and Nelson, M. (2024), CCQM_Retrospectoscope Reference Manual: A detailed reference to the CCQM_Retrospectoscope, a suite of graphical tools for the meta-analysis of measurement 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.8478e2024, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=958606 (Accessed October 17, 2025)

Issues

If you have any questions about this publication or are having problems accessing it, please contact [email protected].

Created December 12, 2024
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