First    Previous    Next    Last    Index   
Notes:
Cabinets and boxes - better to have most items in cabinets as the environments are more stable (Delta, Viking, Archive Designs, inc., Montel, etc.) acid free is the key in any and all storage and labeling materials (boxes, folders, mylar) copies of University products, Hollingerİand Light Impressions catalogues are available
Temp and humidity - varies depending on the season and kinds of items you are keeping
We should be shooting for 65-68ƒ with 62-70ƒ as the total extremes.
We should be shooting for 40-50% in the winter months (Jan-April, Nov-Dec) and 45-55% in the warmer months (May-Oct).
Paper needs more humidity, photographs need colder temps and less humidity.
Archival and library material no higher than 70ƒ and humidity between 30-50% (Preservation of Library and Archival Materials, by Northeast Document Conservation Center, c.1994)
The most serious thing to watch out for is fluctuationÖthatís worse than levels slightly outside these guidelines. Light Levels - Light damage is cumulative and irreversible.(Handout)
UV is the most destructive, but since it is not seen it is not detrimental to eliminate.
Visible light still causes damage and should be eliminated as much as possible.
5 footcandles or 50 lux has long been considered a desirable level for exhibition. With a max of 50,000 lux annually. Storage/research can offer some solutions and some issues.
Equipment - hygrothermographs — measures temperature and humidity on daily, weekly, monthly basis. Manual
Data Loggers — general term given to the devices that depend on electronic sensors to monitor and record data (such as temperature, relative humidity [RH], and light). Download ability.
Silica Gel
Psychrometer — instantly measures temperature and humidity
Thermohygrometer — small for inside exhibit cases
Light meters — visible and UV
UV films and filters
Blue Wool test cards
Slide 9 of 12