PMG Environmental Standards and Guidelines for Storage
|Date initiated||September 2009|
|Contributors||Luisa Casella, Stephanie Watkins|
- 1 Purpose of Environmental and Storage Guidelines
- 2 Storage Environment Factors to Consider
- 3 Effects of Storage on Photographic Materials
- 4 Standards, Guidelines and Recommendations
- 5 Equipment and Materials
- 6 Storage Techniques for Photographic Materials
- 7 References
Purpose of Environmental and Storage Guidelines
- Identify the variety of complex and interwoven forces that effect change, and thus, the preservation of photographic materials.
- Utilize the most recent information to maximize the chemical and physical stability of all photographic materials while in storage.
- Minimize changes in the image, binder, and support from agents of change, such as light exposure, temperature (heat, freeze-thaw cycles, cool storage, cold storage), humidity, pollution, storage container or collection material off-gassing, or any other environmental or storage related factors.
Storage Environment Factors to Consider
Effects of Storage on Photographic Materials
Standards, Guidelines and Recommendations
Cool and Cold Storage
- Art Institute of Chicago (IL, USA):
- Amon Carter Museum of American Art (TX, USA): Cool is 60°F, 40% RH, Cold is 20°F, 30% RH, and a vestibule for acclimatizing photographs between the two is 40°F, 35% RH (all temperatures ±3°F) (Panadero, 2019).
- Harry Ransom Humanities Research Center, University of Texas at Austin (TX, USA) (nitrate and acetate film vault):
- Indiana Historical Society (IL, USA): Temperature and RH set points are 50°F and 35% RH.
- Museum of Fine Arts, Houston (TX, USA):
- NARA (National Archives and Records Administration) (MD, USA):
Equipment and Materials
Storage Techniques for Photographic Materials
- Connecting to Collections Care (C2C). Dynamic, constantly changing FAIC online community with numerous resource links for care of photographic materials.
- Elkin, Lisa and Christopher A. Norris 2019. Preservation Conservation: Collection Storage. Joint publication of the Society for the Preservation of Natural History Collections; American Institute for Conservation of Historic and Artistic Works; Smithsonian Institution; The George Washington University Museum Studies Program.
- Image Permanence Institute. Collections environmental monitoring, engineering solutions, Object temperature and humidity recommendations (in PEM2 monitoring software), among other services and information.
- STASHc (Storage Techniques for Art, Science and History Collections). Foundation of the American Institute for Conservation. Accessed July 5, 2020. https://stashc.com/.
Photographic Materials Specific
- Panadero, Laura. 2019 (June 12). Blog on presentation of Amon Carter Museum of American Art 3-year cold storage expansion project, Fernanda Valverde. American Institute for Conservation 47th annual meeting (2019).
(>>>Editor note: needs a search for cool and cold storage; re: Topics, JAIC, IIC, WAAC, community forum, etc.)
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