Preservation: expertise and services
In cooperation with the Centre de recherche sur la conservation des collections – CRCC (formerly the Centre national de la recherche sur la conservation des documents graphiques – CRCDG), BnF has adapted an existing process which makes it possible to neutralize acid in the paper.
A desacidification unit was then settled at the BnF Sablé Center. Batches of 100 to 200 volumes are treated in a vacuum chamber where they are first dehydrated (paper moisture is brought back to 0,5%) before being immersed in an aqueous solution composed of freon (90%) and magnesium ethoxide under pressure. 25,000 to 30,000 volumes a year can be treated in the desacidification unit.
21 euros + VAT per kilogrammes of documents
(insurance and transportation not included)
The minimum order is 5 kilogrammes.
Thursday, June 30, 2016
ContactCentre technique de conservation Joël‑le‑Theule
For more info
sur la désacidification de masse [fichier .pdf – 315 Ko – 14/10/09 – 24 p.] in Actualités de la conservation, n° 22-23, janvier-juin 2005