Display lighting for ivory

Many articles have mentioned that illumination of ivory should be
kept below 150 lux, and 50 lux for dyed ivory. Can this standard
also be used in permanent exhibition or it need to be stricter?

Chao-Chun Lu
Department of Registration and Conservation
National Palace Museum
No.221, Chih-shan Rd., Sec. 2,
Shih-lin District
Taipei, R.O.C. (Taiwan)
+886 2 2881 2021 ext.2135
Fax: +886 2 2881 8534


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                  Conservation DistList Instance 23:22
               Distributed: Wednesday, December 23, 2009
                       Message Id: cdl-23-22-022
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