Microfading Tester International Discussion Group

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  • 1.  Data Storage of Microfade Testing Files

    Posted 03-17-2025 14:51

    What happens to your data after you've analyzed an object with MFT? How are you archiving the files and raw data generated from microfade testing? 



    ------------------------------
    Rio Lopez
    Objects Conservator
    Academy Museum of Motion Pictures
    Los Angeles
    United States
    ------------------------------


  • 2.  RE: Data Storage of Microfade Testing Files

    Posted 03-18-2025 09:32

    Hi Rio, 

    In Textile Conservation at The Met, we use a folder system in our shared network drive that was already in place before we started using our MFT.  It's organized by accession number. We'd used the system to store results from other equipment like XRF, spectrophotometer, multiband imaging, etc. so it seemed a natural solution to us. 

    We save the aging curves and the "before" and "after" spectra from MFT measurements as plaintext files in the object's respective folder. We save the PDF reports in the same place and print a hard copy of the report as well. The .txt files do not take up much digital space. Because it's organized by accession number, and because the conservators are used to this system, it's easy for everyone to find the MFT file they're looking for. 

    All this said, we are still relatively new to microfade testing in our department and don't have piles and piles of testing files to worry about. Perhaps a more specific solution will be necessary in the future, as we produce more files. 

    I hope this was helpful! 

    Thank you! 

    Best,

    Oliver



    ------------------------------
    Oliver Orr
    Associate Manager of Laboratory
    Metropolitan Museum of Art, Textile Conservation Department
    New York
    United States
    ------------------------------



  • 3.  RE: Data Storage of Microfade Testing Files

    Posted 03-19-2025 10:25

    Hi Rio,

    We have just started storage of our MFT files for the National Trust. All associated sample raw dat files, image files and resulting excel and powerpoint report files are packaged in a folder by identification number (object accession number) and shared to our internal shared network drive (SharePoint) as read only except for folder owners. PDF copies of reports are kept in the same directory for free consultation by anyone with access.

    I also keep a Master results spreadsheet with relevant information for each sample and the instrument settings saved in the same directory.

    We are on a journey to migrate to a new CMS so involved in conversations regarding way to record MFT results and decisions re light budgets / significance direct into the new platform. Have not performed a bulk upload of PDF reports to CMS object files yet but that is planned for later in the month.

     

    Regards,

     

    Kristie Short-Traxler ACR

     

     

    National Conservator – Conservation Science

    Access & Conservation

    7-10 Savoy Hill House

    London WC2R 0BU

    Mobile: 07365 436978

    Email: kristie.shorttraxler@nationaltrust.org.uk

     

    Please note that my work week is Tuesday – Friday

     

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  • 4.  RE: Data Storage of Microfade Testing Files

    Posted 03-21-2025 15:40

    Thank you also Kristie and JP for your responses! This is super helpful and something I'll be making note of to share with others.  



    ------------------------------
    Rio Lopez
    Objects Conservator
    Academy Museum of Motion Pictures
    Los Angeles
    United States
    ------------------------------



  • 5.  RE: Data Storage of Microfade Testing Files

    Posted 03-21-2025 15:37

    Thank you Oliver, this is very helpful! I too am relatively new to MFT, which got me thinking about the archiving of all this important data. 



    ------------------------------
    Rio Lopez
    Objects Conservator
    Academy Museum of Motion Pictures
    Los Angeles
    United States
    ------------------------------



  • 6.  RE: Data Storage of Microfade Testing Files

    Posted 03-18-2025 11:52
    Here's how we do it at the Field Museum.

    1. We export the data from SpectralViewer v3rc1b (File > Export Data...), which generates a PDF report for each survey, and a ZIP file with spectra and dE Lab+dE data for all the surveys.

    2. We manually add the white reference spectrum (which is Broadcom .spz format, so fairly intelligible text tuples) to the ZIP file.

    3. We create an analysis record for the item analyzed in the Conservation module of our collections management system (Axiell EMu), and attach the PDF files and the ZIP file as multimedia records.

    JP

    JP Brown (he/his)
    Senior Conservator
    Vice-Chair MFT-IDG

    t: +1 312 665 7879
    f: +1 312 665 7193


    Field Museum
    1400 S. DuSable Lake Shore Dr.
    Chicago, IL 60605





  • 7.  RE: Data Storage of Microfade Testing Files

    Posted 03-24-2025 11:19

    Hi Rio, 

    This is such a good question.

    Like others that have replied, here at National Galleries of Scotland, we package everything up into an MFT folder that goes into the digital object folder. We would do the same for any other analysis like XRF.

    The folder ends up containing,

    •  the original data files for each test site for the object (in a folder per test site),
    • all the data files for the days blue wool calibration runs
    • Photomicrographs of each test site
    •  An annotated photograph of the object which indicates the test site locations
    • A spreadsheet with all the data in, plus the charts / spectra I create from the data
    • A report summarising all of this, written using PowerPoint and then also saved as a pdf.

    This is currently just a folder system on a server, but we are looking to see if all of the information we gather about collection objects can go into a DAMS system and be linked to the collection database for people to access. I have my doubt about a Digital Asset Management system coping with the different type of files that we create for Microfading, XRF etc, so we are also thinking about other routes or potentially a database (but that's a whole other conversation / project). The folder is regularly backed up by our IT department.

    When I do a fade run, I use macro enabled spreadsheets (set up by Bruce Ford) to ingest the data and analyse it for each test site on that object and also then also for the object overall. This means the data is also being stored within a spreadsheet. I can create data per test site, including the start and end spectra and ab diagram and also colour change curves for the object overall.

    We are just migrating to a new collection database and as part of that, I hope to be able to add the recommended light budget for each object I have tested to the object record. In my dreams, the system will also auto-calculate the light exposure to date, but we shall see!

    I also keep a master sheet of results including date of test, recommended light budget etc. I plan to rethink this a bit and see what data analysis I can do from this at some point. 

    Great to hear what others are doing,

    thanks so much

    Kirsten



    ------------------------------
    Kirsten Dunne
    Senior Projects Conservator
    National Galleries Scotland
    Edinburgh
    kdunne@nationalgalleries.org
    ------------------------------



  • 8.  RE: Data Storage of Microfade Testing Files

    Posted 03-26-2025 07:06
    Dear all,

    I follow a similar process to Kirsten Dunne's, at Tate. We have also added a 'flex field' to The Museum System software, where the Blue Wool equivalent for the artwork as a whole (usually based on the most light sensitive component, but with paint that loses yellowness when it is microfaded, the interpretation is more nuanced)  is added. This enables paper conservators in particular, but also other staff, to see that an object is light sensitive.

    Best wishes,
    Joyce

    Dr Joyce H Townsend FIIC ACR
    Senior Conservation Scientist, Tate
    Conservation Department
    Tate Britain
    Millbank
    London SW1P 4RG, UK

    joyce.townsend@tate.org.uk


     



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