MapGeo 406_P2_01954 2014-01-01 to 2014-07-25 6 months, 25 days Main Library • Map and Geography • Fourth • 406 UIUC Library PresCons Preservation Environment Evaluation Type of Decay Natural Aging Chemical decay of organic materials Risks & Metrics 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 = 51 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 = 2.07 % EMC min = 3.3 % EMC max = 10.8 Mold Risk Mold growth in area or on collection objects GOOD Minimal risk of mold growth. MRF = 0 Metal Corrosion Corrosion of metal components or objects RISK Heightened risk of metal corrosion due to extended periods of high levels of humidity. % EMC max = 10.8 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% Mar May Jul Sep Nov Mar May Jul Sep Nov Statistics Temperature Relative Humidity Dew Point T°F Mean 70.7 %RH Mean 35 DP°F Mean T°F Median 70.5 %RH Median 30 DP°F Median T°F Stdev 1.5 %RH Stdev 18 DP°F Stdev T°F Min 67.2 %RH Min 9 DP°F Min 7.7 T°F Max 75.7 %RH Max 67 DP°F Max 59.7 eClimateNotebook® - Image Permanence Institute - Rochester Institute of Technology - © 2014 Overview Report - Created: 2014-11-25 38.3 52 15.5 MapGeo 418A_P2_02463 2014-01-01 to 2014-11-03 10 months, 3 days Main Library • Map and Geography • Fourth • 418A UIUC Library PresCons Preservation Environment Evaluation Type of Decay Natural Aging Chemical decay of organic materials Risks & Metrics 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 = 45 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 = 2.14 % EMC min = 3.1 % EMC max = 10.8 Mold Risk Mold growth in area or on collection objects GOOD Minimal risk of mold growth. MRF = 0 Metal Corrosion Corrosion of metal components or objects RISK Heightened risk of metal corrosion due to extended periods of high levels of humidity. % EMC max = 10.8 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% Mar May Jul Sep Nov Mar May Jul Sep Nov Statistics Temperature Relative Humidity Dew Point T°F Mean 71.8 %RH Mean 37 DP°F Mean 41.1 T°F Median 72.1 %RH Median 40 DP°F Median 54.3 T°F Stdev 2.1 %RH Stdev 17 DP°F Stdev 14.5 T°F Min 62.2 %RH Min 9 DP°F Min 7.3 T°F Max 81.8 %RH Max 65 DP°F Max 60.7 eClimateNotebook® - Image Permanence Institute - Rochester Institute of Technology - © 2014 Overview Report - Created: 2014-11-25 MapGeo_406_P2_11026 2014-07-25 to 2014-11-03 3 months, 10 days Main Library • Map and Geography • Fourth • 406 UIUC Library PresCons Preservation Environment Evaluation Type of Decay Natural Aging Chemical decay of organic materials Risks & Metrics Evaluation & General Comments RISK Accelerated rate of chemical decay in all organic materials due to the cumulative effects of temperature and humidity, with especially high risk for fast decaying organic materials such as acidic paper, color photographs and cellulosic plastics. TWPI = 33 OK Mechanical Damage Physical damage to hygroscopic materials Generally OK, but sensitive or fast responding hygroscopic materials such as paintings, rare books, vellum manuscripts or musical instruments will be at elevated risk of physical damage due to fluctuations of humidity. % DC = 0.89 % EMC min = 8 % EMC max = 11.2 Mold Risk Mold growth in area or on collection objects GOOD Minimal risk of mold growth. MRF = 0.01 Metal Corrosion Corrosion of metal components or objects RISK Heightened risk of metal corrosion due to extended periods of high levels of humidity. % EMC max = 11.2 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% Mar May Jul Sep Nov Mar May Jul Sep Nov Statistics Temperature Relative Humidity Dew Point T°F Mean 70.2 %RH Mean 51 DP°F Mean 50.6 T°F Median 69.9 %RH Median 50 DP°F Median 60.1 T°F Stdev 1.6 %RH Stdev 9 DP°F Stdev 5.6 T°F Min 67.1 %RH Min 23 DP°F Min 31.4 T°F Max 79.7 %RH Max 70 DP°F Max 60.9 eClimateNotebook® - Image Permanence Institute - Rochester Institute of Technology - © 2014 Overview Report - Created: 2014-11-25