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preventive conservation
The conditions in which the materials are stored has a great impact on their life-span. This is why in the 1990s, advanced underground depots were built with a total storage capacity stretching 27 kilometers. The archive depots were built under high demands concerning the climate (temperature and humidity), ventilation, air purity, lighting, and water and fire safety.
Much damage and deterioration can be avoided simply by using appropriate packaging materials. The packaging to be used is determined according to the chemical nature of the material to be packaged. To pack paper, for example, acid free boxes and covers should be used.
The production of microfilms and digitisation are used towards several goals. On the one hand, to improve the accessibility and search possibilities of information (via the internet for example) and on the other hand, to avoid further wear and tear of original materials. Even modern information carriers (like CD-ROMs and DVDs) are subject to material deterioration. The maintenance of digital information in the future (digital sustainability) currently has our full attention.
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