What is the maximum size of an approved safety can for flammable liquids?

The maximum size of an approved safety can for flammable liquids is 5 gallons. This regulation is in place to enhance safety when handling and transporting flammable materials. Safety cans are designed to contain flammable liquids and prevent spills and vapors from escaping, which can pose significant fire hazards. A 5-gallon capacity balances the need for adequate storage of flammable liquids while still being manageable for users.

To meet safety standards, these cans typically feature vents to relieve pressure, flame arresters to prevent igniting vapors, and mechanisms to control the flow of liquids. Therefore, having a maximum size of 5 gallons ensures that the cans can effectively serve their function while remaining within a size that is practical for users to handle.

In contrast, smaller capacities, such as 1, 2, or 3 gallons, do not meet the regulatory requirements for larger volumes of flammable liquids that might be necessary for various applications. Hence, 5 gallons is established as the standard maximum size for safety cans that can be used safely and effectively for handling flammable liquids.