02468cgm a22004573i 4500 22861100 20250607115903.5 cr ||a|||||||| 220930s2017 dcu||| | fo vleng 22861100 0 ibc orignew u ncip 20 y-gencatlg 2021690594 8221 DLC eng DLC Centuries of Cellulose: Lessons Learned from the Molecular Analysis of Cellulose in Aged Paper Collections. Washington, D.C. : Library of Congress, 2017-08-29. 1 online resource two-dimensional moving image tdi rdacontent computer c rdamedia online resource cr rdacarrier Topics in Preservation Series Classification: Bibliography, Library Science, Information Resources (General). Classification: Science. Classification: Technology. Andrew Davis. Recorded on 2017-08-29. Andrew Davis discussed the work of 20th-centry paper chemist William J. Barrow, whoundertook an ambitious study of 1,000 books printed from the 16th through 20th centuries, meticulously measuring their chemical and physical properties and offering systematic predictions of paper aging and permanence. These same test books now reside in the Center for the Library's Analytical Scientific Samples in the Library of Congress. This talk presented results using advancements in scientific tools to reassess and measure Barrow's same sample books anew. In particular, new micro-invasive tools provide the ability to quantify the degradation effects of aging, enabling new insights and mathematical methods for minimally-destructive paper material analysis. Librarians, Archivists. Researchers. Teachers. Visitors. Education. Science, Technology. Preservation, William J. Barrow, Paper Aging, Paper Material Analysis, Micro-invasive Tools, Minimally-destructive Material Analysis. Library of Congress. Library of Congress. Preservation Directorate, sponsoring body. Event video gdcwebcasts 170829prv1330 https://hdl.loc.gov/loc.gdc/gdcwebcasts.170829prv1330 gdc/webcasts topics_in_preservation preservation s-Online Electronic Resource