Factorial experimentation on photodegradation of historical paper by polychromatic visible radiation

Abstract Quantification of the degradation behaviour heritage objects is essential to manage rate and hence optimise their lifetime. In this research, a 2 3 full factorial experiment was carried out deepen understanding photodegradation historical rag paper induced by continuous polychromatic visible radiation. Oxygen concentration, relative humidity illuminance were investigated as three environmental factors primary concern. The effects these on constant change in diffuse reflectance tristimulus discolouration analysis variance multiple linear regression. main found contribute most paper, among which played important role whereas least. This observation likely hold when extrapolating experimental conditions real collection storage display.