8. Exhibition Environment and Security
Virtosu Art Gallery requires a relative humidity of 50% and temperature of 70°F in exhibition, storage, and packing areas. A fluctuation of ±5% in relative humidity and ±5°F is allowable within a 24-hour period. The borrower may be asked to send environmental reports periodically throughout the loan period.
Light levels for prints, black and white silver gelatin prints, and books must never exceed 100 lux or 10 foot candles. Light levels for manuscripts, textiles (including cloth book covers), colored papers, drawings, watercolors, miniatures, color photographs, 19th-century photographs must never exceed 50 lux or 5 foot candles.
Materials must never be exposed to UV radiation, which includes unfiltered fluorescent illumination and daylight.
The borrower must guarantee the security of loan materials during transit and at all times while they are within the borrowing institution’s premises and the exhibition gallery. There must be fire and intruder alarms covering the gallery containing loaned objects. The gallery should be fully locked, secured, and intruder/fire alarms set during closed hours. Security guard patrols should be made during closed hours around the gallery. Security guard or custodian presence must be maintained at all times when the exhibition and gallery are open.