OSLFCons_ConfRm_P2_03509 2014-01-01 to 2014-10-06 9 months, 6 days Oak Street Library Facility • Conservation • Second • Conference Room UIUC Library PresCons Preservation Environment Evaluation Type of Decay Risks & M etrics Natural Aging Chemical decay of organic materials Evaluation & General Comments OK Generally OK, but fast decaying organic materials such as acidic paper, color photographs and cellulosic plastics will be at elevated risk due to the cumulative effects of temperature and humidity TWPI = 53 RISK Mechanical Damage Physical damage to hygroscopic materials Heightened risk of physical damage to any hygroscopic material, such as paintings, rare books, furniture, paper, leather, film, or color photos, due to extremely low or high levels of humidity, and / or excessive humidity fluctuation. % DC = 1.6 % EMC min = 3.7 % EMC max = 9.4 Mold Risk M old growth in area or on collection objects GOOD M inimal risk of mold growth. MRF = 0 Metal Corrosion Corrosion of metal components or objects OK Generally OK, but archeological or salt-encrusted metals may corrode due to extended periods of moderately high levels of humidity. % EMC max = 9.4 Graphs Temperature °F Relative Humidity % RH 100°F 100% 90°F 80% 80°F 60% 70°F 60°F 40% 50°F 20% 40°F 30°F 0% M ar M ay Jul Sep M ar M ay Jul Sep Statistics Temperature T°F T°F T°F T°F Mean Median Stdev Min T°F Max Relative Humidity 71.1 71.2 2.5 59.3 %RH %RH %RH %RH Mean Median Stdev Min 88.5 %RH Max Dew Point 34 36 14 12 DP°F DP°F DP°F DP°F Mean Median Stdev Min 56 DP°F Max eClimateNotebook® - Image Permanence Institute - Rochester Institute of Technology - © 2014 Overview Report - Created: 2014-10-17 39.4 52.1 10.7 15.3 55 OSLFCons_Vault_P2_06226 2014-01-01 to 2014-10-06 9 months, 6 days Oak Street Library Facility • Conservation • Second • Vault UIUC Library PresCons Preservation Environment Evaluation Type of Decay Risks & M etrics Natural Aging Chemical decay of organic materials Evaluation & General Comments OK Generally OK, but fast decaying organic materials such as acidic paper, color photographs and cellulosic plastics will be at elevated risk due to the cumulative effects of temperature and humidity TWPI = 61 RISK Mechanical Damage Physical damage to hygroscopic materials Heightened risk of physical damage to any hygroscopic material, such as paintings, rare books, furniture, paper, leather, film, or color photos, due to extremely low or high levels of humidity, and / or excessive humidity fluctuation. % DC = 1.89 % EMC min = 3.3 % EMC max = 10.1 Mold Risk M old growth in area or on collection objects GOOD M inimal risk of mold growth. MRF = 0 Metal Corrosion Corrosion of metal components or objects OK Generally OK, but archeological or salt-encrusted metals may corrode due to extended periods of moderately high levels of humidity. % EMC max = 10.1 Graphs Temperature °F Relative Humidity % RH 100°F 100% 90°F 80% 80°F 60% 70°F 60°F 40% 50°F 20% 40°F 30°F 0% M ar M ay Jul Sep M ar M ay Jul Sep Statistics Temperature T°F T°F T°F T°F Mean Median Stdev Min T°F Max Relative Humidity 67.7 67.6 1.7 61.3 %RH %RH %RH %RH Mean Median Stdev Min 85.2 %RH Max Dew Point 36 38 16 9 DP°F DP°F DP°F DP°F Mean Median Stdev Min 60 DP°F Max eClimateNotebook® - Image Permanence Institute - Rochester Institute of Technology - © 2014 Overview Report - Created: 2014-10-17 37.1 51.8 13.2 6.3 53.6