If obtained nitrate-based films show signs of decomposition they should be cleaned, duplicated, and destroyed. According to the FIAF, “after duplication, the disintegrating nitrate original must be destroyed. There is no alternative course, since the best storage conditions can only retard disintegration, not stop or reverse it” (Volkmann, 8). The cellulose-nitrate film has reached the final phases of its lifespan. Factors affecting nitrate film life are: inherent stability and purity of cellulose nitrate as manufactured, storage temperature (rate of decomposition doubles every 5 degrees Celsius increase in temperature), moisture content as determined by storage relative humidity, escape of nitrogen oxide fumes and acidic gases and ability to remove them so as not to contaminate the film rolls.

 

The Kodak Book of Film Care states that “you must handle unstable or deteriorated nitrate films very much as you would explosives”; therefore explicit procedures need to be followed for disposal. The films should be kept under water until disposal can be arranged either on site if there are facilities to do so, or off site by a commercial waste disposal company. The method of eradication is “high temperature incineration coupled with effective air-pollution control” (Kodak, Film Care, 45).