In addition, proper ventilation can prevent volatile chemicals from contaminating other materials in storage. Separation of chemicals in storage by type is additional insurance against contamination. Flammable liquids must be stored outside living areas and away from ignition sources. Dampness is a serious problem, as it reduces the shelf life of many chemicals and causes metal and paper containers to degrade. It is imperative that storage areas be secure from flooding.
Temperature extremes can also affect product shelf life.
In addition, heat increases the volatility of stored chemicals while freezing can cause some types of containers to rupture. If specific temperature ranges are required for proper storage, they will be found on the product label. Chemicals and the containers in which they are to be held must be in good condition. Whenever possible, pesticides and fertilizers should be kept in their original containers. In all cases, a legible product label must be attached to the chemical container.