Consumer Guides
A Consumer Guide to Modern Photo Papers
Traditional and Digital Print Stability
Recovery of Water-Damaged Traditional and Digital Prints
Understanding Permanence Testing
Materials for Preservation Framing and the Display of Photographic Images
DewPoint Calculator
What conditions will provide the longest life for your collection, prevent mold growth, and decrease the risk of mechanical decay?
The DewPoint Calculator illustrates the interrelation of temperature, RH, and dew point. Enter values for any two of these three elements, and the software application will provide the third, allowing you to explore this three-way relationship in a hypothetical storage or display environment.
Will condensation occur if an object is brought directly into a work room?
The DewPoint Calculator calculates the risk of condensation too. Determine the optimum RH for your work room environment or what the temperature of an object must be to prevent condensation from forming when it leaves the storage environment.
The DewPoint Calculator is included in Climate Notebook 3.1, but it is also available at no charge as a stand-alone application.
Try it out! Download the DewPoint Calculator.
The Dew Point Calculator is now available online!
Visit www.dpcalc.org to explore its features.
Preservation Calculator
How good is your storage environment? How fast is your collection deteriorating? Will your current storage conditions encourage mold growth?
The Preservation Calculator is a planning and analysis tool for collection storage environments in libraries, archives, and museums.
Use it to:
Learn how temperature and RH affect organic objects in storage,
evaluate a given storage condition,
compare one storage condition to another,
or plan new storage conditions.
Organic materials (carbon-containing substances such as plastics, dyes, paper, plants, and animal products) make up a large proportion of cultural property collections. The Preservation Calculator shows how temperature and humidity combine to influence the rate of decay of organic objects. It is concerned with two forms of decay: natural aging (caused by spontaneous chemical change within the material) and mold damage.
The self-extracting file “wwwprescalc.exe” will automatically install the application on your local computer. The Preservation Calculator runs with Windows® 95, 98, NT, ME, 2000, and XP. (Not available for the Mac.)
Try it out! Download the Preservation Calculator.
