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    • CCQM_Retrospectoscope, an Excel workbook-based suite of graphical meta-analysis tools for the exploration of measurement results from Consultative Committee for the Amount of Substance: Metrology in Chemistry and Biology (CCQM)-sponsored multi-site studies.

    Metadata Updated: March 14, 2025

    The CCQM_Retrospectoscope system 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. This system supports a diverse collection of often eye-opening 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). The system is implemented in Excel using Microsoft?s Visual Basic for Applications (VBA) programs. It runs on both Windows and Macintosh platforms.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: See this page for license information.

    Downloads & Resources

    Dates

    Metadata Created Date December 15, 2023
    Metadata Updated Date March 14, 2025
    Data Update Frequency irregular

    Metadata Source

    Harvested from NIST

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date December 15, 2023
    Metadata Updated Date March 14, 2025
    Publisher National Institute of Standards and Technology
    Maintainer
    Identifier ark:/88434/mds2-2952
    Data First Published 2023-10-02
    Language en
    Data Last Modified 2023-03-10 00:00:00
    Category Chemistry:Analytical chemistry:Metrology:Amount of substance
    Public Access Level public
    Data Update Frequency irregular
    Bureau Code 006:55
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id 6ba8083e-8487-497f-8b36-d96181358701
    Harvest Source Id 74e175d9-66b3-4323-ac98-e2a90eeb93c0
    Harvest Source Title NIST
    Homepage URL https://data.nist.gov/od/id/mds2-2952
    License https://www.nist.gov/open/license
    Program Code 006:045
    Source Datajson Identifier True
    Source Hash d7ea957e9de8decff2eef1b8f83b311da1b209c5ed3936ab55bf1db9d2029721
    Source Schema Version 1.1

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