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Mecklenburg, M F and Tumosa, C S (1999) Practical Guide: Temperature and Relative Humidity Effects on the Mechanical and Chemical Stability of Collections. ASHRAE Journal, 41 (4). pp. 77-82.

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One of a series of seven articles forming a practical guide to HVAC for museums and historical renovation. Discusses the principal effects of moisture and temperature on mechanical and chemical stability of collections. Considers the effects of relative humidity on mechanical properties of cultural materials and explains with examples how their mechanical properties can be measured by conducting tests at extremely slow strain rates. Notes the effects of the rate of change of relative humidity on materials and the effects of temperature on the mechanical properties. Based on chemical considerations, illustrates in a diagram the safe allowable environmental ranges for photographic materials. Gives an equation for the rates of chemical reaction of museum objects. Notes deterioration by hydrolysis and cross-linking reactions. Considers permissible ranges of relative humidity and temperature, based on a multi-year effort to study the effects of the environment on materials and objects in collections.

Item Type: Article
Uncontrolled Keywords: Collection; HVAC; Climatic stress; Temperature; Relative humidity
Subjects: English > Climate Control
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Depositing User: Anna Samuelsson
Date Deposited: 03 Apr 2008 12:56
Last Modified: 14 Mar 2017 10:36

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