Key indicators
Acceptable threshold for sealed product shelf life: 1 to 2 years.
Most desirable sealed product shelf life: 2 to 5 years.
Threshold efficacy: product must meet any microbial claims for the complete shelf life of the product.
Most desirable storage temperature range: -7°C to 60°C.
Storage humidity range: 30% to 100% RH.
Integrity of product is maintained and no maximum contaminant levels (MCLs) within treated water are exceeded due to product degradation or production of other chemicals.
Unsealed product should remain chemically stable and microbially efficacious for at least twice (safety factor = 2) the duration of the maximum user's consumption rate paired to the number of doses exposed upon breaking the product's seal.