Mass Deacidification Technology in Germany and its Quality Control.

The article informs that mass deacidification technology in Germany and its quality control. European archives and library preservation officers today are able to choose among several commercial companies providing mass deacidification services according to different systems. To develop a holistic deacidification programme, they have to be able to evaluate which collection materials should be subjected to such a mass treatment. Until recently, there has been no meaningful analytical procedure for evaluating the efficacy of mass deacidification treatments. Common tests provided only limited information and required destructive analysis on extensive sample material. None of these tests can predict the chemical stability or ageing properties of paper.