Deterioration Of Materials Case Study

Deterioration occurs because of some factors that give an impact to the archival materials. The factors are divided into two groups which is inherent factor and external factor. Compare to external factor, inherent factor is the biggest responsible for deterioration of archival materials. According to M.C. Onwubiko, the main factor in inherent factor is acidity that contain in the paper itself or from the atmosphere. The major causes of deterioration of paper materials in acidity. At the earlier century there is papyrus before wood-pulp was discovered. The lignins that contain in the wood pulp cause paper weaken and discolour. There are some types of inherent factor that causes deterioration. The first factor is acids from the equipment. Archives used different types of shelves to store which is wood and metal shelves. They do not know that by using wood equipment can lead to damage the materials. Boxes also are commonly use in archives to store valuable newspaper, letter or maps. The choice of boxes is important because if it not suitable it can damage the materials.
The next factor is from air pollutants. Air pollutants criteria contain of three which is sulfur oxides, nitrogen oxides and ozone that can arise in form of indoor pollution. Some of those criteria can be control by installed system to remove it and some only can be
Temperature is level of heat and cold of environment. Archival materials are very sensitive with a high temperature where it can affected the lifespan and dry out adhesive on paper. The temperatures of archival materials are different where the audio-visual materials are requiring very low temperature compare to paper materials. If the temperature is high it encourages the growth of fungus. The ideal temperature to keep records is not above