The inventory should be reviewed every three months, at which time samples from List I, three months or older and Lists II and III samples twelve months or older would either tested for peroxides or discarded. Purchase in package sizes corresponding to use requirements to minimize exposure to air from multiple openings of the container.
Sunlight is an especially good promoter of peroxidation.
Protection from physical damage and ignition sources during storage is also essential. Particular care should be given to ensure tight closure on storage containers. Loose or leaky closures may permit evaporation of storage material, leaving a hazardous concentration of peroxides in the container. Most common container materials, such as steel, stainless steel, copper, nickel, aluminum, baked phenolic linings and ceramics are suitable for containers, however, they must be clean and free from metal oxides, because oxides from iron or copper may actually promote peroxide formation. The use of oxidation inhibitors is especially important in the safe handling of peroxidizable materials.