Sources of Contamination
• Introduced with the raw material and from the process equipment (e.g. rust)
• Generated from the manufacturing process and various refining activities
• Some amount of polymerization of the refined MDI in the storage tanks
• Filtration of refined MDI prior to delivery / loading
• Filtration of raw material
• Strainers / Metal filters within the manufacturing process. Requires high temperature components.
• FCN cartridge