The Protect/Preserve Function 3. Examples of preservation packaging problems Table 2.2 Typical preservation packaging problems and concerns Condition Quantification or Design Requirement Oxygen Determine required barrier level Carbon dioxide Determine required barrier level Other volatiles Determine nature and barrier level Light Design opaque package Spoilage Determine nature/chemistry Incompatibility Determine material incompatibilities Loss of sterility Determine mechanism Biological deterioration Determine nature Deterioration over time Determine required shelf lifeThe Protect/Preserve Function 3. Examples of preservation packaging problems Table 2.2 Typical preservation packaging problems and concerns Condition Quantification or Design Requirement Oxygen Determine required barrier level Carbon dioxide Determine required barrier level Other volatiles Determine nature and barrier level Light Design opaque package Spoilage Determine nature/chemistry Incompatibility Determine material incompatibilities Loss of sterility Determine mechanism Biological deterioration Determine nature Deterioration over time Determine required shelf life