These same rules apply to fire extinguishers & flammable materials stored in cans also.
Working with Aerosol Cans
Workers face three general types of hazards when working with aerosol cans.
The first of these is the pressurization. As long as the can and the dispensing device remain intact, aerosol cans are safe. But any number of problems, such as a puncture, a faulty valve, excessive temperatures, or corrosion can result in unintended depressurization. In the most severe cases, aerosol cans, fire extinguishers, and any flammable materials in a can may explode, burning nearby workers and showering them with steel shrapnel.
The second hazard is the actual product being dispensed by the can. Often, these products are inherently hazardous, such as in the case of insecticides. Others may contain hazardous substances, such as the concentrated solvents found in some paints or cleaners. In fact, some cans that are partially empty may be legally considered to be hazardous wastes.
Finally, if either the propellant or the product it delivers is flammable, the aerosol can creates a fire hazard. Safe Work Practices: As with most hazards, the first steps in reducing the dangers associated with aerosol cans is to eliminate their use in the workplace where possible. If workers do use aerosol cans, they should be familiar with the Safety Data Sheets (SDS) for the material and use the cans according to directions. Personal protective equipment or additional ventilation may be required.
Aerosols, when kept in overheated conditions, can become volatile and explosive. Many aerosol cans, whatever the contents, warn explicitly against keeping them in areas of direct sunlight or where the temperature reaches 120 degrees F or more. During the summer, the inside of a vehicle can reach 130 degrees F or hotter. At these temperatures, aerosols become over-pressurized and can explode at any time. Aerosol cans should always be stored in dry areas where they will not be exposed to excessive temperatures.
Remember that the same rules apply to fire extinguishers & flammable materials stored in cans also.
Conclusion:
Read the SDS on all chemicals and aerosols. Keep aerosols, fire extinguishers, & any flammable materials stored in a can, out of direct sunlight and stored in areas where temperatures do not exceed 120 degrees F.
Questions:
- List 3 hazards when working with aerosol cans
- What is the maximum temperature for storing aerosol cans, fire extinguishers, or any flammable materials in a can?