Risks to Collections Archives: Incorrect Humidity

Silica Gel Calculator

Silica Gel Calculator Source: SmallCorp How much Silica Gel do I need? This tool calculates the weight of SmallCorp silica gel required to maintain a microclimate in your case.

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Museum Collections Environment

Museum Collections Environment Source: The updated (2016) NPS Museum Handbook, Chapter 4 on the Environment including temperature and relative humidity, light, monitoring, and general guidelines.

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Trends in microclimate control of museum display cases

Trends in microclimate control of museum display cases Source: Creating and controlling microclimates for museum exhibits. This historical review of microclimate control in museum display cases reflects the changes in approach to museum microenvironmental control that have arisen with new technologies over the past hundred years. A variety of approaches to controlling the environment within […]

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The Realistic Preservation Environment, Ernest A Conrad, PE, March 1999

The Realistic Preservation Environment, Ernest A Conrad, PE, March 1999 Source: NAtional Archives and Records Administration (NARA) There is a popular misconception that a realistic environmental criteria to preserve artifacts is that which is a compromise between opposed needs of the building, the occupant, and the collection at a cost which an institution is willing […]

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Stored Alive!

Stored Alive! Source: Image Permanence Institute (IPI) Stored Alive! is an interactive tutorial program that lets you explore the ways in which temperature and relative humidity affect the objects in your collection. I

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Environmental Guidelines for Museums

Environmental Guidelines for Museums Source: Canadian Conservation Institute (CCI) This general introduction to the current approach to controlling ambient RH and temperature in museums is intended for all museum professionals. It is based on the “Museums, Galleries, Archives and Libraries” chapter in the American Society of Heating, Refrigeration, and Air Conditioning Engineers Inc. (ASHRAE) Handbook, […]

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CCI Notes 3/4 Psocids or “Book Lice:” a Warning of Dampness

Psocids or “Book Lice”: a Warning of Dampness – CCI Notes 3/4 Source: Canadian Conservation Institute (CCI) Book lice, called psocids, are members of the insect order Psocoptera. For cultural collections, the presence of psocids sounds an alarm indicating unacceptably damp conditions — conditions that promote mould growth on objects and in buildings, which in turn […]

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