For a Class B fire with non-appreciable depth in a light hazard, what are the extinguisher ratings and their respective travel distances?

For a Class B fire, which involves flammable liquids and gases, the ratings indicate the effectiveness of the extinguisher in controlling or extinguishing fires fueled by such materials. The Class B ratings are based on the square footage of the fire that can be extinguished and the distance the user can safely be from the fire.

A 5B rating means the extinguisher can control a fire covering 5 square feet of flammable liquid. The maximum travel distance for a fire extinguisher in light hazard areas with this rating is 30 feet. For a 10B rating, which indicates the extinguisher can control a larger area of 10 square feet, the maximum travel distance increases to 50 feet.

Understanding these ratings is critical for ensuring safety during a fire response; being within the specified distances allows for effective use of the extinguisher while minimizing risk to the operator. This combination of ratings and distances reflects the appropriate use of extinguishing agents based on the size and type of fire, which is particularly important in environments classified as light hazard.