Technician treating a book by reducing its acidity

Technician treating a book by reducing its acidity

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Caption: Book preservation. Female technician taking a sample from fluid being used to reduce the acidity levels in a page from an old book. Acids produced by the action of microbes can damage the fibres which make up the paper. Photographed at the National Library of France in Paris.

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Keywords: acidity control, book, non-destructive testing, paper, preservation, preservation test, technology, test

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