DIN 32701:2018-11

Archives, libraries and similar institutions store written and printed documents which they are obliged to retain on a permanent basis for cultural reasons and, in some cases, in order to meet legal requirements. Often, the condition of these documents is endangered for a number of reasons. The problem of paper degradation due to acid has developed into a tremendous problem for archives and libraries. This document specifies test methods and minimum requirements for paper deacidification processes regarding their effectiveness and consistency. It is applicable for all large scale processes which offer deacidification of acid documents made of printed or hand-written paper.