Display maintenance and cleaning are higher than anticipated, but only as a consequence of the very much greater number of visitors than originally estimated. Thus a guide providing the recommended practices and listing the standards and reference literature related to preservation of documents of all kinds was published by the Sub-Committee on Technology of the Memory of the World Programme. IT9 committee after their meetings. In the latest update you can read about the replacement of ANSI standards with ISO standards, and about the committees work toward new standards on stability of the various new digital hardcopy medias. Tea bags as formaldehyde scavengers.
Tea bags can cure sick building syndrome, say Japanese researchers.
People who move into a new house can suffer nausea and sore throats due to the chemicals from fresh paint and glue. One of the chief culprits is formaldehyde. Now the Tokyo Metropolitan Consumer Center has found that tea bags scattered around the house soak up the formaldehyde, aided by tannin in the tea. They found that the concentration of formaldehyde in the air fell by between 60 and 90 per cent. Dry black or green tea is said to work best.